06451-1643 AGC 1 BC

 
 
06h 45m 08.92s -16° 43' 02.0" P.A. 129.00 sep 1.4 mag 8.44,12.60 Sp DA2
 
 
Coord 2000 06451-1643 Discov num AGC   1 Comp BC Coord arcsec 2000 06 45 08.92 -16 43 02.0
Date first 1920 Date last 1929 Obs 7
Pa first 231 Pa last 129.2 P.A. Now (θ) 129.2°
Sep first 0.8 Sep last 1.38 Sep. Now (ρ) 1.38"
Mag pri 8.44 Mag sec 12.60 delta mag (ΔM) 4.16 Spectral class DA2 (white dwarf)
Pri motion ra -055 Sec motion ra
Pri motion dec -122 Sec motion dec
Notes N U (See Notes, Proper motion indicates non-physical)
This double is not physical.
 
 
06451-1643 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show Sirius 151881 06 45 09 -16 42 58 AGC 1 AB 2021 2062 67 11.3 -1.47 8.44 9.91 Y
Show 151881 06 45 09 -16 42 58 LEC 1 AC 1999 1 30 64.5 -1.47 12.60 14.07
Show 151881 06 45 09 -16 42 58 AGC 1 AD 1915 2 183 31.6 -1.47 14.00 15.47
Show 151881 06 45 09 -16 42 58 HL 3 AE 2011 7 47 188.3 -1.47 14.50 15.97
Show 151881 06 45 09 -16 42 58 BU 1411 AF 2011 7 61 125.7 -1.47 13.80 15.27
Show 06 45 09 -16 43 02 AGC 1 BC 1929 7 129 1.4 8.44 12.60 4.16 <===
Sextuple system
6 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Canis Major
 
 
WDS 06451-1643 AGC 1 BC : NOTES
 
 
discov_num notes refcode
AGC 1 AB: Sirius = alp CMa = 9 CMa.
Bessel, in 1834, notes that the proper motion was variable and, in his
letter to Humboldt, stated that "..Procyon and Sirius are genuine
binary systems, each consisting of a visible and an invisible star."
Not quite invisible, this large dm pair consisting of a main sequence
A star and a white dwarf was first resolved by Alvan G. Clark on 31
January 1862 in the process of of testing the 18.5" refractor. See
notes by Burnham and Aitken. Bu_1906
The separation for the 1862.275 measurement by Lassell is reported as Lsl1862
4.92". This is clearly incorrect and not consistent with measurements
by other observers. WDS catalogers assume an factor of 2 error and
correct separation to 9.84".
Otto Struve lists a measurement of Sirius in 1861.21. However, this Stt1893a
predates the discovery of the companion Sirius B by A. Clark and his
son on 1962 Jan 31 and the first formal measurement by G. P. Bond on
1862 February 7. Comparing the uncorrected PA and separation in
Struve's table in 1893 with the measurements published by Struve, we Stt1864
suspect that 1861.21 is a typo and should refer to the observation on
1863-Mar-16.
Companion almost hidden behind secondary mirror diffraction ray from
Sirius B was never observed at these position angles until the early Sea1882
20th century. We suspect that this is a clerical error and that the
measurements pertain to another system.
For the 1882.988 measurement the PA is listed as 41.6 deg and is Bu_1883
40.6 in another. Bu_1883b
Many of the recovery observations of Sirius B following the periastron
passage after 1890 are doubtful. The recovery observations made by See1896d
See, Douglass, and Cogshall at Lowell Observatory from 1896.668 to Dgl1896
1896.695 were taken in the morning shortly before sunrise when Sirius Cog1896a
was low in the sky. See notes that the mean position angle of 220 deg
at 5.10" is about 30 deg behind its predicted location and the sep
sep is larger than expected based on previous orbit fit. Aitken and A__1896d
Schaeberle reported measurements between 1896.814-1897.027 made from Shb1897a
Lick Observatory at a significantly different mean position angle of
189 deg and 3.7". Both Aitken and Schaeberle comment that neither of
them saw a star at the position reported by Dr. See. Following the
contradictory reports, Stimson J. Brown published observations from Brs1896
his logbook that were taken earlier in March 1896 at the USNO. The
position angle is similar to the values reported by Aitken, but the
separation is about 1" larger. Brown notes that the observations were
taken under challenging conditions and he did not have much confidence
in their reliability. See later refuted his earlier measurements See1897e
after unsuccessfully searching for the companion while observing from
Mexico and then successfully detecting the companion at a pa of 175 deg
and 4.6" in September 1897 at Lowell. He writes, "The erroneous
conclusion to which I was led last year seems to have arisen from a
very unusual and entirely unexpected cause, of which we need not
speak here..." In hindsight, See also reported in that publication,
two observations from April 1895 that he initially did not think were
worthy of announcing. The difficulty in attempting to find Sirius B
using the Lick Observatory 36 inch in February and March of 1896 was
described by William J. Hussey. Hu_1896
See1900d and Brs1900d measures : "All of the observations have been See1900d
thoroughly checked. A number of errors were discovered in the earlier Brs1900d
reductions and corrected. These reductions have also been slighty See1911
changed by the adoption of a later and better determined value of a Brs1911a
revolution of the micrometer screw. This will account for small
discrepanacies between the results published here and those previously
published in the astronomical periodicals."
For the 1904.186 measuremment by T. Lewis, the title of the article, L__1904
text, and first page of the data table all refer to observations taken
in 1904. Subsequent pages of the data table (including the page that
Sirius is listed on) list an epoch of 1903. However, this is probably a
typo, so date corrected the date to be in 1904.
Sirius A. B__1959a
Hipparcos astrometric solution adopted some elements from the orbit of HIP1997d
Gatewood & Gatewood (1978). Gat1978
AB: Malkov et al. (2012) derive dynamical, photometric, and
spectroscopic masses 3.08 +/- 0.42, 2.46, and 2.19 Msun, respectively. Mlk2012
BC: Suspected by Fox in 1920, also reported by Innes, van den Bos, and A__1932a
Finsen. Other observers fail to confirm duplicity of B. Single 1945, B__1929a
1946, 1949, 1950. Recovered by Popovic in 1975 at approximately the Fin1929a
the same position as the 1929 resolutions. If these are periodic, the Pop1977b
next approximate time for resolution is 2020. Therefore, since we
believe the detections of C to be real, but likely of a background
optical interloper, BC carries a "U" code and not an "X" code.
However, very compelling argument that this is a chance allignment of Lec2000
a non-physical background star appearing close to Sirius AB is the
1920-30 time period is now assumed.
Time displacement residuals over a period of 6.8y are linear ruling Ldb1973
out a 6.4y perturbation with an amplitude of 0.14". There is no
evidence of a close companion with this nature associated with Sirius.
Otto Struve corrected his measurements for systematic errors by Stt1893a
measuring artificial double stars. He provided both the original and
corrected measures of the separation and position angle for the
companion of Sirius. Aitken cautions that the variance of the angles A__1935f
and distances compared with other observers is often larger for
Struve's corrected values. However in the case of Struve's measurements
of the companion of Sirius, Bond et al. mean residuals in the position BdH2017
angle improved when using the corrected values, while the residuals in
separation did not change significantly, so the corrected values are
reported here.
For the photographic observations by Lindenblad, tables are given for Ldb1970
the raw individual measures, while only the mean measures are corrected Ldb1973
for emulsion contraction. The average time span covered by these mean
measures is ~ 70 nights, so we used Lindenblad's tabulated scale BdH2017
corrections to compute corrected separations and position angles for
the individual measurements. We then took the mean for plates taken on
the same night, reducing the number of individual measurements from 157
down to 77 measurements on unique dates.
X coded van Albada (1962) measures corrected for emulsion contraction. vAb1971
Jasinta & Hidayat (1999) did not correct these epochs for emulsion Jas19995
contraction.
Measure of Anton corrected in a later publication. Ant2010
Ant2012
Schroeder measure re-reducted and corrected in Bond Table 2. Shd2011
BdH2017
Sirius A mass is 2.063+/-0.023 \msun with an age of 242+/-5 Myr, BdH2017
a radius of 1.7144+/-0.0090 \rsun, luminosity of 24.74+/-0.70 \lsun,
and Teff of 9845+/-64 K. Sirius B mass is 1.018+/-0.011 \msun,
an age of 224(+34-19) Myr, a radius of 0.008098+/-0.000046 \rsun,
luminosity of 0.02448+/-0.00033 \lsun and Teff of 25,369+/-46 K.
Intensity Interferometer Limb-darkened diameter 5.89 +/- 0.16 mas. HBr1974
Mk III Limb-darkened diameter 5.993 +/- 0.108 mas. MkT2003
AD: Rectilinear solution by Mason & Hartkopf (2015). Msn2015a
HL 3 AE: Rectilinear solution by Mason & Hartkopf (2015). Msn2015a
BU 1411 AF: Rectilinear solution by Mason & Hartkopf (2015). Msn2015a
 
 
REFERENCES
 
 
refcode metd author reference
A__1896d Ma - Aitken, R.G. 1896PASP....8..314A
A__1896d PASP 8, 314, 1896 (all data also in A__1896a) 1896AJ.....17...27A
A__1932a Ma - Aitken, R.G. 1932QB821.A43......
A__1932a Aitken Double Star Catalogue, 1932
A__1935f - Aitken, R.G. 1935QB821.A3.......
A__1935f The Binary Stars, 1935
Ant2010 C u Anton, R. 2010JDSO....6..133A
Ant2010 JDSO 6, 133, 2010
Ant2012 C u Anton, R. 2012JDSO....8...15A
Ant2012 JDSO 8, 15, 2012
B__1929a Ma j van den Bos, W.H. 1929CiUO...80...59V
B__1929a Union Obs. Johannesburg Circ. 80, 59, 1929
B__1959a Mb j van den Bos, W.H. 1959ApJS....4...45V
B__1959a ApJS 4, 45, 1959
BdH2017 H+ j Bond, H.E., Schaefer, G.H., Gilliland, R.L., Holberg, J.B., Mason, B.D., 2017ApJ...840...70B
BdH2017 +Po Lindenblad, I.W., Seitz-McLeese, M., Arnett, W.D., Demarque, P., Spada, F.,
BdH2017 +orb Young, P.A., Barstow, M.A., Burleigh, M.R. & Gudehus, D.
BdH2017 +not ApJ 840, 70, 2017
Brs1896 Ma j Brown, S.J. 1896AJ.....17...46B
Brs1896 AJ 17, 46, 1896
Brs1911a Ma j Brown, S.J. .
Brs1911a Pub. USNO 6, A117, 1911
Bu_1883 Ma j Burnham, S.W. (BU 864 - 1025) 1883MmRAS..47..167B
Bu_1883 MemRAS 47, 167, 1883
Bu_1883b Ma - Burnham, S.W. 1883MNRAS..43..318B
Bu_1883b MNRAS 43, 318, 1883
Bu_1906 Ma j Burnham, S.W. 1906QB821.B972.....
Bu_1906 +M Burnham Double Star Cat., 1906
Cog1896a Ma j Cogshall, W.A. 1896AJ.....16..211S
Cog1896a AJ 16, 211, 1896
Dgl1896 Ma j Douglass, A.E. 1896AJ.....17....1S
Dgl1896 AJ 17, 1, 1896
Fin1929a Ma j Finsen, W.S. 1929CiUO...80...85F
Fin1929a Union Obs. Johannesburg Circ. 80, 85, 1929
Gat1978 - Gatewood, G.D. & Gatewood, C.V. 1978ApJ...225..191G
Gat1978 ApJ 225, 191, 1978
HBr1974 - Hanbury Brown, R., Davis, J., & Allen, L.R. 1974MNRAS.167..121H
HBr1974 MNRAS 167, 121, 1974
HIP1997d orb - Hipparcos 1997yCat.1239....0E
HIP1997d Hipparcos Catalog, ESA SP-1200, 1997
HIP1997d (DMSA/O Orbital Solutions)
Hu_1896 not - Hussey, W.F. 1896PASP....8..183H
Hu_1896 PASP 8, 183, 1896
L__1904 Ma j Lewis, T. 1904RGOO...........
L__1904 Greenwich Observations, 1904 (data also in MNRAS 66, 17, 1905) 1905MNRAS..66...17L
Ldb1970 Po j Lindenblad, I.W. 1970AJ.....75..841L
Ldb1970 AJ 75, 841, 1970 (erratum in AJ 78, 226, 1973)
Ldb1973 Po j Lindenblad, I.W. 1973AJ.....78..205L
Ldb1973 AJ 78, 205, 1973
Lec2000 C - Bonnet-Bidaud, J.M., Colas, F., Lecacheux, J. 2000A&A...360...991
Lec2000 A&A 360, 991, 2000
Lsl1862 Mb j Lassell, W. 1862AN.....57..251L
Lsl1862 AN 57, 251, #1360, 1862
MkT2003 Km - Mozurkewich, D., Armstrong, J.T., Hindsley, R., Quirrenbach, A., Hummel, C.A., 2003AJ....126.2502M
MkT2003 +not Hutter, D., Johnston, K.J., Hajian, A., Elias, N.M., II, Buscher, D., & Simon, R.
MkT2003 AJ 126, 2502, 2003
Mlk2012 not - Malkov, O.Yu., Tamazian, V.S., Docobo, J.A., & Chulkov, D.A. 2012A&A...546A..69M
Mlk2012 A&A 546, A69, 2012
Msn2015a orb - Mason, B.D. & Hartkopf, W.I. 2015IAUDS.187....1M
Msn2015a +lin Inf. Circ. 187, 1, 2015
Pop1977b Ma j Popovic, G.M. 1977BOBeo.128...37P
Pop1977b Bull. Obs. Astron. Belgrade #128, 37, 1977
Sea1882 Ma - Searle, G.M. 1882AnHar..13...17.
Sea1882 Harvard Ann. 13, 17, 1882
See1896d Ma j See, T.J.J. 1896AJ.....17....1S
See1896d AJ 17, 1, 1896
See1897e Ma j See, T.J.J. 1897AJ.....18...75S
See1897e AJ 18, 75, 1897
See1900d Ma j See, T.J.J. 1900AN....153...99S
See1900d AN 153, 99, #3654, 1900
See1911 Ma j See, T.J.J. .
See1911 Pub. USNO 6, A117, 1911
Shb1897a Ma j Schaeberle, J.M. 1897AJ.....17...76S
Shb1897a AJ 17, 76, 1897
Stt1864 Ma - Struve, O. 1864MNRAS..24..149S
Stt1864 MNRAS 24, 149, 1864
Stt1893a Ma j Struve, O. 1893ObPul..10....1S
Stt1893a Pulkova Obs. Observations 10, 1, 1893
vAb1971 Pa j van Albada, G.B. 1971A&A....11..317V
vAb1971 +Po A&A 11, 317, 1971
 
 
DISCOVERER
 
 
idgroup discov author
1 AGC Clark, A.G.
2 BU Burnham, S.W. (BU 1 - 81)
180 HL Hall, A.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
06451-1643 AGC 1 BC 1929 7 129 1.4 8.44 12.60 DA2 NU 064508.92-164302.0
06451-1643 AGC 1 BC 1975 8 144 1.5 8.58 11.41 N 064508.92-164302.0
06451-1643 AGC 1 BC 2000 9 30 79.1 8.58 12.60 NU 064508.92-164302.0

If you need more information about this double, apply for a data request form to the WDS.

 
 
WDS 06451-1643 AGC 1 BC : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 06451-1643 AGC 1 BC : MEASURES
 
 
No records found.

 
 
WDS 06451-1643 : VIRTUAL EYEPIECE
 
 

06451-1643 AGC   1A mag -1.47 Sp A1Vm 06451-1643 AGC   1B sep 4.0 P.A. 180.00 mag 8.44 Sp DA2 06451-1643 LEC   1C sep 63.8 P.A. 29.10 mag 12.6 06451-1643 AGC   1D sep 31.6 P.A. 183.10 mag 14 06451-1643 HL    3E sep 184.1 P.A. 45.80 mag 14.5 06451-1643 BU 1411F sep 121.7 P.A. 59.70 mag 13.8 virtual eyepiece
Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.

Radius:
Components only
 
 
WDS 06451-1643 : ALADIN DSS IMAGE @ 06h 45m 08.92s -16° 43' 02.0"
 
 
 
 
WDS 06451-1643 AGC 1 BC : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only


06451-1643  AGC   1BC distance=0' 06451-1643  AGC   1AB (Sirius) distance=1' 06451-1643  AGC   1AD (Sirius) distance=1' 06451-1643  HL    3AE (Sirius) distance=1' 06451-1643  BU 1411AF (Sirius) distance=1' 06451-1643  LEC   1AC (Sirius) distance=1' 06449-1651  GAL 260 distance=9' 06456-1653  A  3035 distance=13' 06460-1646  SHN 107 distance=13' 06463-1652  I   481 distance=20' 06427-1644  KPP 144 distance=36' 06435-1709  A  3034 distance=36' 06471-1734  TDS4130 distance=59' 06475-1553  GAL 263 distance=61' 06488-1613  BU   20 distance=61' 06420-1600  BU   19 distance=63' 06406-1625  TDS 268 distance=68' 06499-1651  GAL 415 distance=68' 06497-1558  TDS4183 distance=80' 06425-1532  BRT 611 distance=81' 06497-1557  TDS4182 distance=81' 06471-1759  LDS 172 distance=82' 06407-1549  TDS4022 distance=84' 06504-1602  BU  898CD distance=85' 06506-1611  TDS4201 distance=85' 06404-1551  A  3032 distance=86' 06504-1602  BU  898AB distance=87' 06504-1602  BU  898AC distance=87' 06446-1516  GAL 414 distance=88' 06489-1533  GWP 838 distance=89' 06418-1758  A  3033 distance=89' 06481-1807  KPP4366BC distance=94' 06481-1807  GWP 833AB distance=95' 06510-1559  TDS4208 distance=95' 06483-1520  A  3038BC distance=96' 06483-1520  STF 972A,BC distance=96' 06438-1819  TDS4077 distance=99' 06413-1523  GAL 253 distance=99' 06518-1729  ARA 170 distance=106' 06386-1732  ARA 169 distance=106' 06408-1811  ARA 348 distance=108' 06443-1830  B  1964 distance=108' 06380-1713  A  3031 distance=108' 06504-1801  TDS4198 distance=109' 06490-1509  AC    4 distance=110' 06438-1832  TDS4078 distance=111' 06380-1600  TDS3980 distance=112' 06508-1526  DAM 423 distance=112' 06435-1834  TDS4071 distance=114' 06511-1524  DAM 424CD distance=117' 06511-1524  RST3472AB distance=118' grafico limitrofi
Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.

Show name coord_2000 discov# comp pa sep dist(')
Show 06451-1643 AGC 1 BC 129 1.4
Show Sirius 06451-1643 AGC 1 AB 67 11.3 1
Show Sirius 06451-1643 AGC 1 AD 183 31.6 1
Show Sirius 06451-1643 HL 3 AE 47 188.3 1
Show Sirius 06451-1643 BU 1411 AF 61 125.7 1
Show Sirius 06451-1643 LEC 1 AC 30 64.5 1
Show 06449-1651 GAL 260 332 3.7 9
Show 06456-1653 A 3035 281 1.9 13
Show 06460-1646 SHN 107 -1 0.1 13
Show 06463-1652 I 481 163 0.7 20
Show 06427-1644 KPP 144 75 3.8 36
Show 06435-1709 A 3034 54 1.5 36
Show 06471-1734 TDS4130 21 0.8 59
Show 06475-1553 GAL 263 67 5.9 61
Show 06488-1613 BU 20 27 3.3 61
Show 06420-1600 BU 19 167 3.8 63
Show 06406-1625 TDS 268 357 1.0 68
Show 06499-1651 GAL 415 51 13.6 68
Show 06497-1558 TDS4183 98 0.5 80
Show 06425-1532 BRT 611 263 4.4 81
Show 06497-1557 TDS4182 98 0.6 81
Show 06471-1759 LDS 172 21 29.6 82
Show 06407-1549 TDS4022 166 0.4 84
Show 06504-1602 BU 898 CD 269 2.0 85
Show 06506-1611 TDS4201 289 0.7 85
Show 06404-1551 A 3032 306 0.5 86
Show 06504-1602 BU 898 AB 356 3.3 87
Show 06504-1602 BU 898 AC 282 97.7 87
Show 06446-1516 GAL 414 144 15.2 88
Show 06489-1533 GWP 838 167 203.0 89
Show 06418-1758 A 3033 188 0.3 89
Show 06481-1807 KPP4366 BC 17 3.4 94
Show 06481-1807 GWP 833 AB 21 76.5 95
Show 06510-1559 TDS4208 80 2.7 95
Show 06483-1520 A 3038 BC 321 0.2 96
Show 06483-1520 STF 972 A,BC 154 12.5 96
Show 06438-1819 TDS4077 338 0.6 99
Show 06413-1523 GAL 253 107 9.7 99
Show 06518-1729 ARA 170 110 5.5 106
Show 06386-1732 ARA 169 45 13.5 106
Show 06408-1811 ARA 348 69 12.6 108
Show 06443-1830 B 1964 318 1.0 108
Show 06380-1713 A 3031 318 3.6 108
Show 06504-1801 TDS4198 177 0.6 109
Show 06490-1509 AC 4 348 0.4 110
Show 06438-1832 TDS4078 51 0.6 111
Show 06380-1600 TDS3980 169 1.9 112
Show 06508-1526 DAM 423 180 7.8 112
Show 06435-1834 TDS4071 181 0.6 114
Show 06511-1524 DAM 424 CD 74 6.7 117
Show 06511-1524 RST3472 AB 275 1.9 118

 
 
WDS 06451-1643 : COMPONENTS
 
 
  A B C D E
B pa=180.0°
sep=4.00"
 
C pa=29.1°
sep=63.78"
pa=27.5°
sep=67.30"
 
D pa=183.1°
sep=31.59"
pa=183.5°
sep=27.59"
pa=200.6°
sep=93.19"
 
E pa=45.8°
sep=184.12"
pa=44.9°
sep=186.93"
pa=54.2°
sep=124.35"
pa=39.9°
sep=208.43"
 
F pa=59.7°
sep=121.69"
pa=58.1°
sep=123.75"
pa=85.7°
sep=74.26"
pa=49.0°
sep=141.52"
pa=201.8°
sep=72.26"
 
 
06451-1643 A
 
 
Common name Sirius Meaning burning or hot Other names Dog Star, Aschere, Canicula, Al Shira, Sothis, Alhabor, Mrgavyadha, Lubdhaka, Tenr?sei, Sirio, Lokabrenna Coord arcsec 2000 064508.92-164258.0
Mag -1.47 Spectral class A1Vm (white) PmRA -55.00 PmDE -122.0
SAO 151881 HIP 32349 Tycho2 5949-02777-1 HD 48915
HR 2491 GC 8833 BD BD-16 1591 Bayer Alpha Canis Majoris
Bayer name Alp CMa Flamsteed 9 Canis Majoris Flamsteed name 9 CMa FK5 257
SAO
SAO 151881 DelFlag RA1950 PmRA1950 -0.0379
DE1950 PmDE1950 -1.211 Vmag -1.6 SpType A0
Double code Source 74 CatNum 257 DM BD-16 1591
DMcomp BDsup HD 48915 M HD 0
GC 8833 RA1950rad 1.75818021 DE1950rad -0.29053126 PmRA2000 -0.0379
PmDE2000 -1.206
Hipparcos
Catalog H HIP 32349 Proxy RAhms 06 45 09.25
DEdms -16 42 47.3 Vmag -1.44 VarFlag 2 R Vmag G
RAdeg 101.289 DEdeg -16.7131 AstroRef + Plx 379.21
CCDM 06451-1643 N CCDM I Nsys 1 Ncomp 1
MultFlag O Source Qual M HIP
Theta Rho HD 48915 BD BD-16 1591
CD CP Dm number -16 1591 VIred -0.02
SpType A0m... R SpType Coord arcsec 2000 064509.25-164247.3
Hipparcos 2
HIP 32349 Sn 0 So 4 Nc 1
RArad 1.7678185359 DErad -0.2916993748 Plx 379.21 PmRA -546.01
PmDE -1223.07 E RArad 1.21 E DErad 1.04 E Plx 1.58
E pmRA 1.33 E pmDE 1.24 Hpmag -1.0876 E Hpmag 0.0024
SHp 0.04 VA 0 BV 0.009 E BV 0.007
VI -0.02
CCDM
Ccdm 06451-1643 RComp Comp A Note1
Note2 Discov num DRAs 2.87 DDEs 2.0
R dRAs 6 Year Theta Rho
Obs 4 Vmag -1.6 Sp A0 PmNote *
PmRA -553 PmDE -1205 Dm number -16 1591 Cat1 BD
Name2 151881 Cat2 SAO HD 48915 M HD
ADS BDS A 5423 M ADS BDS N IDS IDS 06408S1635A
HIC 32349
 
 
06451-1643 B
 
 
Coord arcsec 2000 064508.92-164302.0 Coord calc 064508.92-164302.0 Mag 8.44 Spectral class DA2 (white dwarf)
PmRA -55.00 PmDE -122.0 Calc delta mag 9.91
CCDM
Ccdm 06451-1643 RComp Comp B Note1 *
Note2 Discov num AGC 1 DRAs 2.87 DDEs 2.0
R dRAs 6 Year 1862 Theta Rho
Obs 99 Vmag 8.5 Sp A7 PmNote *
PmRA -553 PmDE -1205 Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A 5423 M ADS BDS N IDS IDS 06408S1635B
HIC 32349
 
 
06451-1643 C
 
 
Coord arcsec 2000 064511.08-164202.3 Mag 12.6 Calc delta mag 14.07 Calc coord yes
CCDM
Ccdm 06451-1643 RComp B Comp C Note1
Note2 Discov num AGC 1 DRAs 2.87 DDEs 2.0
R dRAs 6 Year 1929 Theta 129 Rho 1.4
Obs 7 Vmag Sp PmNote *
PmRA -553 PmDE -1205 Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A 5423 M ADS BDS N IDS IDS 06408S1635C
HIC 32349
 
 
06451-1643 D
 
 
Coord arcsec 2000 064508.80-164329.5 Mag 14 Calc delta mag 15.47 Calc coord yes
CCDM
Ccdm 06451-1643 RComp Comp D Note1
Note2 Discov num AGC 1 DRAs DDEs
R dRAs Year 1915 Theta 183 Rho 31.6
Obs 1 Vmag 14.0 Sp A0 PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS A 5423 M ADS BDS N IDS IDS 06408S1635D
HIC
 
 
06451-1643 E
 
 
Coord arcsec 2000 064518.10-164049.6 Mag 14.5 Calc delta mag 15.97 Calc coord yes
 
 
06451-1643 F
 
 
Coord arcsec 2000 064516.24-164156.7 Mag 13.8 Calc delta mag 15.27 Calc coord yes