12357-1650 FIN 368 Aa,Ab
12h 35m 42.81s -16° 49' 34.1" P.A. 111.00 sep 0.1 mag 6.83,9.93 Sp F4V dist. 73.75 pc (240.57 l.y.)
Coord 2000 |
12357-1650 |
|
Discov num |
FIN 368 |
|
Comp |
Aa,Ab |
|
Coord arcsec 2000 |
12 35 42.81 -16 49 34.1 |
|
Date first |
1960 |
|
Date last |
2021 |
|
Obs |
23 |
|
Pa first |
118 |
|
Pa last |
110.8 |
|
P.A. Now (θ) |
102.6° |
|
Sep first |
0.1 |
|
Sep last |
0.14 |
|
Sep. Now (ρ) |
0.117" |
|
Mag pri |
6.83 |
|
Mag sec |
9.93 |
|
delta mag (ΔM) |
3.1 |
|
Spectral class |
F4V (yellow-white) |
|
Pri motion ra |
-086 |
|
Sec motion ra |
|
|
Pri motion dec |
+017 |
|
Sec motion dec |
|
|
Notes |
N
O
(See Notes, Orbital solution) |
|
This double is physical.
12357-1650 SYSTEM COMPONENTS
Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
Show |
|
157382 |
12 35 43 -16 49 34 |
FIN 368 Aa,Ab |
2021 |
23 |
111 |
0.1 |
6.83 |
9.93 |
3.10 |
Y |
<=== |
Show |
HD 109557 |
157382 |
12 35 43 -16 49 34 |
HJ 1218 AB |
2015 |
14 |
260 |
11.5 |
6.74 |
11.00 |
4.26 |
|
|
Triple system
2 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
Constellation |
Corvus |
|
SAO |
157382 |
|
HIP |
61463 |
|
Tycho2 |
6103-02397-1 |
|
Gaia DR2 |
3523321827945248384 |
|
HD |
109557 |
|
BD |
BD-16 3499 |
|
Distance |
73.75 |
|
Distance ly |
240.57 |
|
ORBITAL ELEMENTS
Period (P) | 20.39y | |
Periastron (T) | 2015.707y | |
Semi-major axis (a) | 0.147a | |
Eccentricity (e) | 0.036 | |
Inclination (i) | 100.2° | |
Longitude of periastron (ω) | 87.7° | |
Node (Ω) | 290.9° | |
Notes | | |
Reference | Tok2018e | |
Equinox | 2000 | |
Last observation | 2018 | |
Grade | 2 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
111.9 |
0.146 |
2001 |
108.7 |
0.145 |
2002 |
105.2 |
0.131 |
2003 |
100.5 |
0.106 |
2004 |
91.9 |
0.073 |
2005 |
67.8 |
0.039 |
2006 |
351.4 |
0.031 |
2007 |
314.3 |
0.063 |
2008 |
303.3 |
0.097 |
2009 |
297.8 |
0.125 |
2010 |
294.0 |
0.142 |
2011 |
290.8 |
0.147 |
2012 |
287.5 |
0.138 |
2013 |
283.4 |
0.116 |
2014 |
276.5 |
0.084 |
2015 |
258.7 |
0.045 |
2016 |
183.1 |
0.026 |
2017 |
134.4 |
0.059 |
2018 |
122.4 |
0.096 |
2019 |
116.9 |
0.125 |
2020 |
113.1 |
0.143 |
2021 |
110.0 |
0.147 |
2022 |
106.7 |
0.138 |
2023 |
102.6 |
0.117 |
2024 |
96.0 |
0.087 |
2025 |
81.0 |
0.052 |
2026 |
24.8 |
0.027 |
2027 |
323.0 |
0.049 |
2028 |
306.5 |
0.084 |
2029 |
299.6 |
0.115 |
2030 |
295.4 |
0.137 |
|
|
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
|
|
|
|
|
|
|
|
Measures: green=micrometric, blue=interferometric, purple=photographic |
|
WDS 12357-1650 FIN 368 Aa,Ab : NOTES
discov_num |
notes |
refcode |
FIN 368 |
Aa,Ab: Hipparcos parallax 13.56 +/- 0.76 mas. Dynamical parallax 13.3 |
|
|
mas, masses 1.79 and 1.23 Msun. Speckle measures of 1989-91 and |
McA1990 |
|
2009-11 repeat themselves, hinting at a 20 yr period. However, the |
Tok2010 |
|
measure by Mason et al. in 2006.2 does not fall on the same ellipse |
Msn2009 |
|
and had to be ignored. It could refer to another star, as FIN 368 |
|
|
should have been unresolved at that time according to our preliminary |
|
|
orbit, which also matches the speckle non-resolution in 1976.3 and the |
|
|
non-resolutions in 1964-1966 by Finsen. An alternative orbit with P = |
Fin1965a |
|
10.13 yr and e = 0.9 can also be fitted to the data. The Hipparcos |
|
|
measure on 1991.25 contradicts speckle interferometry on 1991.39; it |
HIP1997a |
|
had to be ignored. Nordstrom et al. (1997) noted double lines |
Nrd1997 |
|
broadened by fast axial rotation of 100 km/s and 20 km/s. However, |
|
|
individual RVs measured by these authors during 1987-1991 (near the |
|
|
apastron) do not show any systematic behavior that could be related to |
|
|
the orbit. Continued speckle monitoring will be critical for |
|
|
confirming the orbit. |
|
REFERENCES
refcode |
metd |
author |
reference |
Fin1965a |
J j |
Finsen, W.S. |
1965ROCi..124...79F |
Fin1965a |
|
Republic Obs. Circ. 124, 79, 1965 |
|
HIP1997a |
Hh - |
Hipparcos |
1997yCat.1239....0E |
HIP1997a |
|
Hipparcos Catalog, ESA SP-1200, 1997 (incl. Hp photometry, vol. 10) |
|
McA1990 |
Sc j |
McAlister, H.A., Hartkopf, & Franz, O.G. |
1990AJ.....99..965M |
McA1990 |
|
AJ 99, 965, 1990 |
|
Msn2009 |
S+ j |
Mason, B.D., Hartkopf, W.I., Gies, D.R., Henry, T.J., & Helsel, J.W. |
2009AJ....137.3358M |
Msn2009 |
+orb |
AJ 137, 3358, 2009 |
|
Msn2009 |
+lin |
|
|
Nrd1997 |
rv - |
Nordstrom, B., Stefanik, R.P., Latham, D.W., & Andersen, J. |
1997A&AS..126...21N |
Nrd1997 |
|
A&AS 126, 21, 1997 |
|
Tok2010 |
S j |
Tokovinin, A., Mason, B., & Hartkopf, W. |
2010AJ....139..743T |
Tok2010 |
|
AJ 139, 743, 2010 (some measures corrected in Tok2017b) |
2017AJ....154..110T |
Tok2018e |
orb - |
Tokovinin, A. |
2018IAUDS.195....1T |
Tok2018e |
|
Inf. Circ. 195, 1, 2018 |
|
DISCOVERER
idgroup |
discov |
author |
1 |
HJ |
Herschel, J.F.W. |
WDS HISTORIC DATA
coord_2000 |
discov_num |
comp |
epoch |
obs |
pa |
sep |
mag_pri |
mag_sec |
spectr |
notes |
coord_arcsec_2000 |
12357-1650 |
FIN 368 |
Aa,Ab |
2006 |
13 |
108 |
0.1 |
6.83 |
9.93 |
F4V |
|
123542.81-164934.1 |
12357-1650 |
FIN 368 |
Aa,Ab |
2009 |
14 |
116 |
0.1 |
6.83 |
9.93 |
F4V |
|
123542.81-164934.1 |
12357-1650 |
FIN 368 |
Aa,Ab |
2012 |
15 |
107 |
0.1 |
6.83 |
9.93 |
F4V |
O |
123542.81-164934.1 |
12357-1650 |
FIN 368 |
Aa,Ab |
2015 |
18 |
79 |
0.0 |
6.83 |
9.93 |
F4V |
NO |
123542.81-164934.1 |
12357-1650 |
FIN 368 |
Aa,Ab |
2017 |
19 |
307 |
0.1 |
6.83 |
9.93 |
F4V |
NO |
123542.81-164934.1 |
12357-1650 |
FIN 368 |
Aa,Ab |
2018 |
22 |
118 |
0.1 |
6.83 |
9.93 |
F4V |
NO |
123542.81-164934.1 |
12357-1650 |
FIN 368 |
Aa,Ab |
2021 |
23 |
111 |
0.1 |
6.83 |
9.93 |
F4V |
NO |
123542.81-164934.1 |
If you need more information about this double, apply for a
data request form to the WDS.
WDS 12357-1650 FIN 368 Aa,Ab : VISUAL OBSERVATIONS REPORTS
No records found.
WDS 12357-1650 FIN 368 Aa,Ab : MEASURES
No records found.
WDS 12357-1650 : VIRTUAL EYEPIECE
Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.
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|
WDS 12357-1650 : ALADIN DSS IMAGE @ 12h 35m 42.81s -16° 49' 34.1"
WDS 12357-1650 FIN 368 Aa,Ab : NEIGHBORHOODS
|
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 |
|
12357-1650 |
FIN 368 |
Aa,Ab |
111 |
0.1 |
|
Show |
|
12357-1650 |
HJ 1218 |
AB |
260 |
11.5 |
|
Show |
|
12373-1703 |
LDS 414 |
Ba,Bb |
36 |
0.9 |
27 |
Show |
|
12373-1703 |
LDS 414 |
AB |
212 |
78.8 |
27 |
Show |
|
12339-1659 |
GWP1827 |
|
354 |
69.2 |
29 |
Show |
|
12366-1623 |
RST3800 |
|
215 |
5.1 |
30 |
Show |
|
12327-1713 |
GWP1825 |
|
108 |
210.1 |
50 |
Show |
|
12332-1605 |
UC 2357 |
|
303 |
62.1 |
58 |
Show |
|
12346-1550 |
LDS4229 |
|
340 |
15.3 |
61 |
Show |
|
12321-1612 |
LAF 47 |
|
256 |
12.9 |
65 |
Show |
|
12385-1742 |
TDS8467 |
|
75 |
0.6 |
66 |
Show |
|
12404-1705 |
CVR 129 |
|
173 |
26.0 |
69 |
Show |
|
12368-1812 |
UC 2372 |
|
192 |
9.9 |
85 |
Show |
|
12392-1541 |
UC 2378 |
|
40 |
37.7 |
85 |
Show |
|
12342-1812 |
LV 5 |
|
303 |
0.9 |
86 |
Show |
|
12314-1748 |
HU 467 |
|
127 |
1.0 |
86 |
Show |
Algorab |
12299-1631 |
SHJ 145 |
AB |
216 |
24.2 |
87 |
Show |
|
12299-1631 |
LAF 46 |
BC |
88 |
6.7 |
87 |
Show |
|
12299-1631 |
LAF 46 |
BD |
100 |
8.3 |
87 |
Show |
|
12299-1631 |
LAF 46 |
BE |
124 |
10.2 |
87 |
Show |
|
12335-1814 |
RST2804 |
|
309 |
0.5 |
91 |
Show |
|
12421-1634 |
GWP1848 |
|
46 |
73.7 |
94 |
Show |
|
12334-1520 |
GWP1826 |
|
82 |
31.9 |
96 |
Show |
|
12399-1811 |
RST2808 |
|
16 |
3.0 |
102 |
Show |
|
12386-1832 |
HU 468 |
AB |
313 |
1.4 |
111 |
Show |
|
12440-1615 |
TSN 163 |
|
85 |
0.3 |
124 |
Show |
|
12283-1548 |
MEL 7 |
|
279 |
0.3 |
125 |
Show |
|
12280-1539 |
TDS 664 |
|
118 |
2.0 |
132 |
Show |
|
12277-1546 |
TOK 558 |
AB |
200 |
999.9 |
133 |
Show |
|
12272-1551 |
KPP1558 |
|
338 |
11.8 |
136 |
Show |
|
12344-1907 |
RST3799 |
|
217 |
1.2 |
139 |
Show |
|
12260-1632 |
UC 2335 |
|
190 |
32.0 |
142 |
Show |
|
12284-1512 |
TDS8399 |
|
113 |
0.5 |
144 |
Show |
|
12254-1705 |
LDS5751 |
|
318 |
28.5 |
149 |
Show |
|
12457-1734 |
FEN 17 |
|
90 |
4.6 |
150 |
Show |
|
12465-1645 |
GWP1855 |
|
155 |
75.7 |
156 |
Show |
|
12248-1650 |
GWP1803 |
|
325 |
22.9 |
157 |
Show |
|
12345-1413 |
UC 2361 |
|
115 |
20.7 |
158 |
Show |
|
12276-1836 |
HU 466 |
|
212 |
2.8 |
159 |
Show |
|
12406-1917 |
WSP 83 |
AB |
179 |
4.9 |
164 |
Show |
|
12406-1917 |
WSP 83 |
AC |
179 |
13.4 |
164 |
Show |
|
12406-1917 |
WSP 83 |
AD |
61 |
19.1 |
164 |
Show |
|
12406-1917 |
WSP 83 |
AE |
282 |
20.0 |
164 |
Show |
|
12406-1917 |
WSP 83 |
AF |
42 |
21.8 |
164 |
Show |
|
12285-1856 |
NSN 105 |
|
29 |
1.0 |
164 |
Show |
|
12459-1807 |
RST2813 |
|
121 |
1.0 |
166 |
Show |
|
12450-1834 |
GWP1852 |
|
325 |
28.3 |
169 |
Show |
|
12381-1940 |
RST3802 |
|
358 |
0.2 |
174 |
Show |
|
12376-1353 |
HJ 2615 |
|
293 |
10.8 |
179 |
Show |
|
12260-1457 |
BU 606 |
|
289 |
0.6 |
180 |
Show |
|
12397-1357 |
SLW 751 |
|
154 |
168.9 |
183 |
|
|
WDS 12357-1650 : COMPONENTS
|
A |
Ab |
Ab |
pa=111.6°
sep=0.13"
| |
B |
pa=259.8°
sep=11.03"
| pa=260.1°
sep=11.15"
|
12357-1650 A
Name |
HD 109557 |
|
Coord arcsec 2000 |
123542.81-164934.1 |
|
Mag |
6.74 |
|
Spectral class |
F4V (yellow-white) |
|
PmRA |
-86.00 |
|
PmDE |
17.0 |
|
SAO |
157382 |
|
HIP |
61463 |
|
Tycho2 |
6103-02397-1 |
|
HD |
109557 |
|
GC |
17159 |
|
ADS |
8603 |
|
BD |
BD-16 3499 |
|
Tycho2 |
6103-02397-1 |
|
Pflag |
|
|
RAmdeg |
188.92818685 |
|
DEmdeg |
-16.82610011 |
|
PmRA |
-79.3 |
|
PmDE |
15.0 |
|
E RAmdeg |
4 |
|
E DEmdeg |
4 |
|
E pmRA |
1.2 |
|
E pmDE |
1.2 |
|
EpRAm |
1991.42 |
|
EpDEm |
1991.24 |
|
Num |
11 |
|
Q RAmdeg |
2.0 |
|
Q DEmdeg |
1.2 |
|
Q pmRA |
2.1 |
|
Q pmDE |
1.4 |
|
BTmag |
7.125 |
|
E BTmag |
0.015 |
|
VTmag |
6.738 |
|
E VTmag |
0.010 |
|
Prox |
999 |
|
TYC |
T |
|
HIP |
61463 |
|
CCDM |
AP |
|
RAdeg |
188.92837750 |
|
DEdeg |
-16.82613556 |
|
EpRA 1990 |
1.71 |
|
EpDE 1990 |
1.52 |
|
E RAdeg |
3.8 |
|
E DEdeg |
4.3 |
|
Posflg |
P |
|
Corr |
0.2 |
|
SAO |
157382 |
|
DelFlag |
|
|
RA1950 |
|
|
PmRA1950 |
-0.0061 |
|
DE1950 |
|
|
PmDE1950 |
0.01 |
|
Vmag |
6.6 |
|
SpType |
F2 |
|
Double code |
|
|
Source |
70 |
|
CatNum |
17159 |
|
DM |
BD-16 3499 |
|
DMcomp |
|
|
BDsup |
|
|
HD |
109557 |
|
M HD |
0 |
|
GC |
17159 |
|
RA1950rad |
3.28603855 |
|
DE1950rad |
-0.28886954 |
|
PmRA2000 |
-0.0059 |
|
PmDE2000 |
0.015 |
|
Catalog |
H |
|
HIP |
61463 |
|
Proxy |
H |
|
RAhms |
12 35 42.81 |
|
DEdms |
-16 49 34.1 |
|
Vmag |
6.68 |
|
VarFlag |
|
|
R Vmag |
H |
|
RAdeg |
188.928 |
|
DEdeg |
-16.8261 |
|
AstroRef |
* |
|
Plx |
13.03 |
|
CCDM |
12357-1650 |
|
N CCDM |
I |
|
Nsys |
1 |
|
Ncomp |
2 |
|
MultFlag |
C |
|
Source |
|
|
Qual |
B |
|
M HIP |
AP |
|
Theta |
111 |
|
Rho |
0.226 |
|
HD |
109557 |
|
BD |
BD-16 3499 |
|
CD |
|
|
CP |
|
|
Dm number |
-16 3499 |
|
VIred |
0.45 |
|
SpType |
F3IV |
|
R SpType |
|
|
Coord arcsec 2000 |
123542.81-164934.1 |
|
HIP |
61463 |
|
Sn |
55 |
|
So |
3 |
|
Nc |
2 |
|
RArad |
3.2974223997 |
|
DErad |
-0.2936714803 |
|
Plx |
13.56 |
|
PmRA |
-78.47 |
|
PmDE |
12.72 |
|
E RArad |
0.65 |
|
E DErad |
0.43 |
|
E Plx |
0.76 |
|
E pmRA |
0.74 |
|
E pmDE |
0.44 |
|
Hpmag |
6.7688 |
|
E Hpmag |
0.0006 |
|
SHp |
0.007 |
|
VA |
0 |
|
BV |
0.377 |
|
E BV |
0.006 |
|
VI |
0.44 |
|
Ccdm |
12357-1650 |
|
RComp |
|
|
Comp |
A |
|
Note1 |
|
|
Note2 |
|
|
Discov num |
|
|
DRAs |
0.74 |
|
DDEs |
26.1 |
|
R dRAs |
10 |
|
Year |
|
|
Theta |
|
|
Rho |
|
|
Obs |
3 |
|
Vmag |
6.6 |
|
Sp |
F2 |
|
PmNote |
* |
|
PmRA |
-86 |
|
PmDE |
11 |
|
Dm number |
-16 3499 |
|
Cat1 |
BD |
|
Name2 |
157382 |
|
Cat2 |
SAO |
|
HD |
109557 |
|
M HD |
|
|
ADS BDS |
A 8603 |
|
M ADS BDS |
|
|
N IDS |
|
|
IDS |
12305S1617A |
|
HIC |
61463 |
|
12357-1650 Ab
Coord arcsec 2000 |
123542.82-164934.1 |
|
Mag |
9.93 |
|
Calc delta mag |
3.1 |
|
Calc coord |
yes |
|
12357-1650 B
Coord arcsec 2000 |
123542.05-164936.1 |
|
Mag |
11 |
|
Calc delta mag |
4.17 |
|
Calc coord |
yes |
|
Ccdm |
12357-1650 |
|
RComp |
|
|
Comp |
B |
|
Note1 |
|
|
Note2 |
|
|
Discov num |
HJ 1218 |
|
DRAs |
|
|
DDEs |
|
|
R dRAs |
|
|
Year |
1875 |
|
Theta |
259 |
|
Rho |
11.8 |
|
Obs |
8 |
|
Vmag |
11.0 |
|
Sp |
|
|
PmNote |
|
|
PmRA |
|
|
PmDE |
|
|
Dm number |
|
|
Cat1 |
|
|
Name2 |
|
|
Cat2 |
|
|
HD |
|
|
M HD |
|
|
ADS BDS |
A 8603 |
|
M ADS BDS |
|
|
N IDS |
|
|
IDS |
12305S1617B |
|
HIC |
|
|