18253+4846 HU 66 BC
18h 25m 18.20s +48° 45' 42.5" P.A. 26.00 sep 0.8 mag 8.40,8.25 Sp G5 dist. 144.72 pc (472.08 l.y.)
Coord 2000 |
18253+4846 |
|
Discov num |
HU 66 |
|
Comp |
BC |
|
Coord arcsec 2000 |
18 25 18.20 +48 45 42.5 |
|
Date first |
1898 |
|
Date last |
2019 |
|
Obs |
20 |
|
Pa first |
223 |
|
Pa last |
25.5 |
|
P.A. Now (θ) |
25.5° |
|
Sep first |
0.5 |
|
Sep last |
0.831 |
|
Sep. Now (ρ) |
0.831" |
|
Mag pri |
8.40 |
|
Mag sec |
8.25 |
|
delta mag (ΔM) |
0.15 |
|
Spectral class |
G5 (yellow) |
|
Pri motion ra |
+019 |
|
Sec motion ra |
+019 |
|
Pri motion dec |
+003 |
|
Sec motion dec |
+004 |
|
Notes |
N
O
(See Notes, Orbital solution) |
|
rPM=0.052 (< 0.3, Physical double)
This double is physical.
18253+4846 SYSTEM COMPONENTS
Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
Show |
|
47482 |
18 25 18 +48 45 42 |
HU 66 AB |
2016 |
65 |
197 |
0.2 |
7.90 |
8.40 |
0.50 |
Y |
|
Show |
HD 170109 |
47482 |
18 25 18 +48 45 42 |
STT 351 AC |
2021 |
102 |
26 |
1.0 |
7.90 |
8.25 |
0.35 |
Y |
|
Show |
|
|
18 25 18 +48 45 42 |
HU 66 BC |
2019 |
20 |
26 |
0.8 |
8.40 |
8.25 |
0.15 |
Y |
<=== |
Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
Constellation |
Draco |
|
HIP |
90284 |
|
Tycho2 |
3534-00302-1 |
|
Gaia DR2 |
2123486226905640960 |
|
HD |
170109 |
|
ADS |
11344 |
|
BD |
BD+48 2692 |
|
Distance |
144.72 |
|
Distance ly |
472.08 |
|
ORBITAL ELEMENTS
Period (P) | 1378.1389y | ± 1224.5787 |
Periastron (T) | 1957.4254y | ± 77.6647 |
Semi-major axis (a) | 1.843a | ± 1.25545 |
Eccentricity (e) | 0.49722 | ± 0.42039 |
Inclination (i) | 100.869° | ± 8.774 |
Longitude of periastron (ω) | 347.155° | ± 78.575 |
Node (Ω) | 33.576° | ± 13.634 |
Notes | n | |
Reference | Izm2019 | |
Equinox | | |
Last observation | 2015 | |
Grade | 5 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
28.9 |
0.911 |
2001 |
28.7 |
0.908 |
2002 |
28.5 |
0.906 |
2003 |
28.3 |
0.903 |
2004 |
28.2 |
0.900 |
2005 |
28.0 |
0.897 |
2006 |
27.8 |
0.894 |
2007 |
27.6 |
0.890 |
2008 |
27.4 |
0.887 |
2009 |
27.2 |
0.883 |
2010 |
27.1 |
0.880 |
2011 |
26.9 |
0.876 |
2012 |
26.7 |
0.872 |
2013 |
26.5 |
0.868 |
2014 |
26.3 |
0.864 |
2015 |
26.1 |
0.860 |
2016 |
25.9 |
0.856 |
2017 |
25.7 |
0.852 |
2018 |
25.5 |
0.848 |
2019 |
25.3 |
0.843 |
2020 |
25.1 |
0.839 |
2021 |
24.9 |
0.834 |
2022 |
24.7 |
0.829 |
2023 |
24.5 |
0.825 |
2024 |
24.2 |
0.820 |
2025 |
24.0 |
0.815 |
2026 |
23.8 |
0.810 |
2027 |
23.6 |
0.805 |
2028 |
23.4 |
0.800 |
2029 |
23.1 |
0.795 |
2030 |
22.9 |
0.789 |
|
|
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
|
|
|
|
|
|
|
|
Measures: green=micrometric, blue=interferometric, purple=photographic |
|
WDS 18253+4846 HU 66 BC : NOTES
discov_num |
notes |
refcode |
HU 66 |
Van Biesbroeck (1954) was unable to resolve this system in 1943, |
|
|
1944 or 1945 on the 82-inch telescope at the McDonald Observatory. |
|
|
However, since he resolved the system successfully in 1946 with the |
|
|
same telescope, and in 1940 with a smaller (40-inch) telescope, the |
|
|
non-resolution is probably due to bad seeing or ID error. |
USN2002 |
STT 351 |
AC: Additional notes may be found in Muller (1955). |
Mlr1955c |
REFERENCES
refcode |
metd |
author |
reference |
Izm2019 |
orb u |
Izmailov, I.S. |
2019AstL...45...30I |
Izm2019 |
|
Ast. Lett. 45, 30, 2019 |
|
Izm2019 |
|
(Orbital elements from weighted solutions used when available (Table 2), |
|
Izm2019 |
|
unweighted elements (Table 1) used for remaining 29 systems.) |
|
Mlr1955c |
Mc - |
Muller, P. |
1955JO.....38..221M |
Mlr1955c |
|
J. Obs. 38, 221, 1955 |
|
USN2002 |
orb - |
Seymour, D., Mason, B.D., Hartkopf, W.I., & Wycoff, G.L. |
2002AJ....123.1023S |
USN2002 |
|
AJ 123, 1023, 2002 |
|
DISCOVERER
idgroup |
discov |
author |
1 |
HU |
Hussey, W.F. |
58 |
STT |
Struve, O. |
WDS HISTORIC DATA
coord_2000 |
discov_num |
comp |
epoch |
obs |
pa |
sep |
mag_pri |
mag_sec |
spectr |
notes |
coord_arcsec_2000 |
18253+4846 |
HU 66 |
BC |
2002 |
7 |
24 |
0.8 |
8.94 |
8.37 |
|
N D |
182518.20+484542.5 |
18253+4846 |
HU 66 |
BC |
2007 |
8 |
27 |
1.0 |
8.94 |
8.37 |
|
N D |
182518.20+484542.5 |
18253+4846 |
HU 66 |
BC |
2010 |
10 |
26 |
0.8 |
8.94 |
8.37 |
|
N D |
182518.20+484542.5 |
18253+4846 |
HU 66 |
BC |
2011 |
12 |
27 |
1.0 |
8.40 |
8.25 |
G5 |
NO |
182518.20+484542.5 |
18253+4846 |
HU 66 |
BC |
2013 |
13 |
27 |
0.8 |
8.40 |
8.25 |
G5 |
NO |
182518.20+484542.5 |
18253+4846 |
HU 66 |
BC |
2015 |
15 |
27 |
0.8 |
8.40 |
8.25 |
G5 |
NO |
182518.20+484542.5 |
18253+4846 |
HU 66 |
BC |
2018 |
18 |
27 |
0.8 |
8.40 |
8.25 |
G5 |
NO |
182518.20+484542.5 |
18253+4846 |
HU 66 |
BC |
2019 |
19 |
26 |
0.8 |
8.40 |
8.25 |
G5 |
NO |
182518.20+484542.5 |
If you need more information about this double, apply for a
data request form to the WDS.
WDS 18253+4846 HU 66 BC : VISUAL OBSERVATIONS REPORTS
No records found.
WDS 18253+4846 HU 66 BC : MEASURES
No records found.
WDS 18253+4846 : VIRTUAL EYEPIECE
Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.
|
|
WDS 18253+4846 : ALADIN DSS IMAGE @ 18h 25m 18.20s +48° 45' 42.5"
WDS 18253+4846 HU 66 BC : 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 |
|
18253+4846 |
HU 66 |
AB |
197 |
0.2 |
|
Show |
|
18253+4846 |
STT 351 |
AC |
26 |
1.0 |
|
Show |
|
18253+4846 |
HU 66 |
BC |
26 |
0.8 |
|
Show |
|
18273+4852 |
TDT 880 |
|
217 |
1.6 |
21 |
Show |
|
18268+4822 |
COU2277 |
|
320 |
0.2 |
29 |
Show |
|
18263+4917 |
TDT 868 |
|
109 |
0.5 |
33 |
Show |
|
18272+4913 |
RAO 392 |
|
129 |
0.9 |
33 |
Show |
|
18221+4821 |
HU 582 |
|
191 |
2.3 |
40 |
Show |
|
18296+4851 |
ES 2667 |
AB |
67 |
13.7 |
43 |
Show |
|
18296+4851 |
CRB 4 |
BC |
291 |
3.2 |
43 |
Show |
|
18276+4926 |
COU2278 |
|
15 |
1.4 |
45 |
Show |
|
18294+4813 |
TDT 905 |
|
110 |
2.0 |
53 |
Show |
|
18283+4930 |
TDT 896 |
|
152 |
8.8 |
54 |
Show |
|
18291+4928 |
UC 3589 |
|
32 |
17.0 |
57 |
Show |
|
18308+4810 |
KPP 415 |
|
9 |
3.7 |
66 |
Show |
|
18192+4754 |
UC 3553 |
|
99 |
15.8 |
80 |
Show |
|
18334+4823 |
TDS 928 |
|
317 |
1.9 |
84 |
Show |
|
18169+4856 |
LDS5174 |
AB |
155 |
109.7 |
84 |
Show |
|
18322+4755 |
KPP2097 |
|
171 |
16.9 |
86 |
Show |
|
18277+5016 |
LEP 158 |
|
238 |
5.1 |
94 |
Show |
|
18179+4743 |
TDT 780 |
|
165 |
0.5 |
98 |
Show |
|
18193+4724 |
ES 1158 |
|
197 |
4.9 |
102 |
Show |
|
18146+4827 |
SHN 228 |
|
-1 |
0.1 |
108 |
Show |
|
18253+4653 |
BU 134 |
|
125 |
1.1 |
113 |
Show |
|
18264+4649 |
STT 352 |
|
221 |
24.2 |
118 |
Show |
|
18161+4729 |
COU2120 |
|
107 |
3.2 |
120 |
Show |
|
18164+5014 |
JNN 117 |
DE |
333 |
0.7 |
124 |
Show |
|
18164+5014 |
UC 3540 |
CD |
177 |
19.5 |
124 |
Show |
|
18197+4654 |
TDS 916 |
|
201 |
0.9 |
125 |
Show |
|
18145+4737 |
COU2119 |
|
275 |
1.3 |
129 |
Show |
|
18133+4944 |
HDS2572 |
|
69 |
14.6 |
132 |
Show |
|
18386+4901 |
CBL 171 |
|
260 |
47.5 |
133 |
Show |
|
18182+5050 |
ES 647 |
|
291 |
2.4 |
143 |
Show |
|
18328+4644 |
BRT1918 |
|
190 |
4.2 |
144 |
Show |
|
18147+5027 |
TDT 760 |
|
139 |
0.5 |
145 |
Show |
|
18117+4758 |
COU2116 |
|
302 |
1.4 |
145 |
Show |
|
18340+5045 |
ES 786 |
|
323 |
5.9 |
146 |
Show |
|
18118+4955 |
COU2393 |
|
78 |
1.9 |
149 |
Show |
|
18405+4906 |
COU2394 |
|
219 |
0.6 |
152 |
Show |
|
18119+4733 |
COU2117 |
|
119 |
0.4 |
154 |
Show |
|
18099+4824 |
STF2293 |
AB |
83 |
12.8 |
155 |
Show |
|
18410+4848 |
COU2395 |
|
137 |
0.6 |
155 |
Show |
|
18340+5058 |
ES 785 |
AB |
98 |
9.4 |
157 |
Show |
|
18340+5058 |
ES 785 |
AC |
293 |
10.9 |
157 |
Show |
|
18340+5058 |
ABH 102 |
AD |
17 |
54.2 |
157 |
Show |
|
18095+4829 |
TDT 713 |
|
332 |
0.5 |
158 |
Show |
|
18172+5103 |
AG 220 |
|
126 |
10.9 |
158 |
Show |
|
18109+4958 |
KPP3328 |
|
63 |
4.1 |
158 |
Show |
|
18319+5110 |
ES 784 |
|
65 |
7.1 |
159 |
Show |
|
18220+5122 |
UC 3560 |
|
292 |
66.1 |
160 |
Show |
|
18387+4716 |
KPP2651 |
|
302 |
24.7 |
162 |
|
|
WDS 18253+4846 : COMPONENTS
|
A |
B |
B |
pa=0.0°
sep=0.00"
| |
C |
pa=17.6°
sep=0.91"
| pa=17.6°
sep=0.91"
|
18253+4846 A
Coord arcsec 2000 |
182518.20+484542.5 |
|
Mag |
7.9 |
|
Spectral class |
G5 (yellow) |
|
PmRA |
24.00 |
|
PmDE |
3.0 |
|
SAO |
47482 |
|
HIP |
90284 |
|
Tycho2 |
3534-00302-1 |
|
HD |
170109 |
|
GC |
25163 |
|
BD |
BD+48 2692 |
|
Tycho2 |
3534-00302-1 |
|
Pflag |
|
|
RAmdeg |
276.32581940 |
|
DEmdeg |
48.76168452 |
|
PmRA |
19.1 |
|
PmDE |
4.0 |
|
E RAmdeg |
5 |
|
E DEmdeg |
5 |
|
E pmRA |
1.3 |
|
E pmDE |
1.3 |
|
EpRAm |
1991.21 |
|
EpDEm |
1991.27 |
|
Num |
9 |
|
Q RAmdeg |
1.0 |
|
Q DEmdeg |
0.8 |
|
Q pmRA |
0.9 |
|
Q pmDE |
0.7 |
|
BTmag |
8.420 |
|
E BTmag |
0.016 |
|
VTmag |
7.450 |
|
E VTmag |
0.011 |
|
Prox |
999 |
|
TYC |
T |
|
HIP |
90284 |
|
CCDM |
AB |
|
RAdeg |
276.32575139 |
|
DEdeg |
48.76167500 |
|
EpRA 1990 |
1.52 |
|
EpDE 1990 |
1.56 |
|
E RAdeg |
5.1 |
|
E DEdeg |
4.9 |
|
Posflg |
P |
|
Corr |
-0.2 |
|
SAO |
47482 |
|
DelFlag |
|
|
RA1950 |
|
|
PmRA1950 |
0.0003 |
|
DE1950 |
|
|
PmDE1950 |
0.006 |
|
Vmag |
7.2 |
|
SpType |
G5 |
|
Double code |
|
|
Source |
70 |
|
CatNum |
25163 |
|
DM |
BD+48 2692 |
|
DMcomp |
|
|
BDsup |
|
|
HD |
170109 |
|
M HD |
0 |
|
GC |
25163 |
|
RA1950rad |
4.81710718 |
|
DE1950rad |
0.85052969 |
|
PmRA2000 |
0.0009 |
|
PmDE2000 |
0.006 |
|
Catalog |
H |
|
HIP |
90284 |
|
Proxy |
H |
|
RAhms |
18 25 18.20 |
|
DEdms |
+48 45 42.5 |
|
Vmag |
7.21 |
|
VarFlag |
|
|
R Vmag |
H |
|
RAdeg |
276.326 |
|
DEdeg |
48.7618 |
|
AstroRef |
C |
|
Plx |
5.39 |
|
CCDM |
18253+4846 |
|
N CCDM |
I |
|
Nsys |
1 |
|
Ncomp |
3 |
|
MultFlag |
C |
|
Source |
|
|
Qual |
A |
|
M HIP |
|
|
Theta |
|
|
Rho |
|
|
HD |
170109 |
|
BD |
BD+48 2692 |
|
CD |
|
|
CP |
|
|
Dm number |
+48 2692 |
|
VIred |
0.85 |
|
SpType |
G5 |
|
R SpType |
|
|
Coord arcsec 2000 |
182518.20+484542.5 |
|
HIP |
90284 |
|
Sn |
15 |
|
So |
3 |
|
Nc |
3 |
|
RArad |
4.8227958088 |
|
DErad |
0.8510541182 |
|
Plx |
6.91 |
|
PmRA |
20.15 |
|
PmDE |
2.26 |
|
E RArad |
1.04 |
|
E DErad |
1.14 |
|
E Plx |
0.96 |
|
E pmRA |
1.41 |
|
E pmDE |
1.55 |
|
Hpmag |
7.3593 |
|
E Hpmag |
0.0009 |
|
SHp |
0.008 |
|
VA |
0 |
|
BV |
0.799 |
|
E BV |
0.041 |
|
VI |
0.85 |
|
Ccdm |
18253+4846 |
|
RComp |
|
|
Comp |
A |
|
Note1 |
|
|
Note2 |
|
|
Discov num |
|
|
DRAs |
0.22 |
|
DDEs |
-18.4 |
|
R dRAs |
10 |
|
Year |
|
|
Theta |
|
|
Rho |
|
|
Obs |
3 |
|
Vmag |
7.9 |
|
Sp |
G5 |
|
PmNote |
* |
|
PmRA |
18 |
|
PmDE |
-1 |
|
Dm number |
+48 2692 |
|
Cat1 |
BD |
|
Name2 |
+48 1411 |
|
Cat2 |
AGK2/3 |
|
HD |
170109 |
|
M HD |
|
|
ADS BDS |
A11344 |
|
M ADS BDS |
|
|
N IDS |
|
|
IDS |
18227N4842A |
|
HIC |
90284 |
|
18253+4846 B
Coord arcsec 2000 |
182518.20+484542.5 |
|
Coord calc |
182518.20+484542.5 |
|
Mag |
8.4 |
|
Spectral class |
G5 (yellow) |
|
PmRA |
19.00 |
|
PmDE |
3.0 |
|
Calc delta mag |
0.5 |
|
Ccdm |
18253+4846 |
|
RComp |
|
|
Comp |
B |
|
Note1 |
|
|
Note2 |
|
|
Discov num |
HU 66 |
|
DRAs |
|
|
DDEs |
|
|
R dRAs |
|
|
Year |
1960 |
|
Theta |
271 |
|
Rho |
0.4 |
|
Obs |
30 |
|
Vmag |
8.1 |
|
Sp |
|
|
PmNote |
|
|
PmRA |
|
|
PmDE |
|
|
Dm number |
|
|
Cat1 |
|
|
Name2 |
|
|
Cat2 |
|
|
HD |
|
|
M HD |
|
|
ADS BDS |
A11344 |
|
M ADS BDS |
N |
|
N IDS |
|
|
IDS |
18227N4842B |
|
HIC |
90284 |
|
18253+4846 C
Coord arcsec 2000 |
182518.23+484543.4 |
|
Mag |
8.25 |
|
PmRA |
19.00 |
|
PmDE |
4.0 |
|
Calc delta mag |
0.35 |
|
Calc coord |
yes |
|
Ccdm |
18253+4846 |
|
RComp |
|
|
Comp |
C |
|
Note1 |
|
|
Note2 |
|
|
Discov num |
STT 351 |
|
DRAs |
|
|
DDEs |
|
|
R dRAs |
|
|
Year |
1960 |
|
Theta |
018 |
|
Rho |
0.7 |
|
Obs |
26 |
|
Vmag |
8.2 |
|
Sp |
|
|
PmNote |
|
|
PmRA |
|
|
PmDE |
|
|
Dm number |
|
|
Cat1 |
|
|
Name2 |
|
|
Cat2 |
|
|
HD |
|
|
M HD |
|
|
ADS BDS |
A11344 |
|
M ADS BDS |
|
|
N IDS |
|
|
IDS |
18227N4842C |
|
HIC |
90284 |
|