20449+1219 B 2910 Aa,Ab
20h 44m 54.58s +12° 18' 45.6" P.A. 52.00 sep 0.1 mag 7.01, Sp A3IV dist. 209.21 pc (682.44 l.y.)
| Coord 2000 |
20449+1219 |
|
Discov num |
B 2910 |
|
Comp |
Aa,Ab |
|
Coord arcsec 2000 |
20 44 54.58 +12 18 45.6 |
|
| Date first |
1937 |
|
Date last |
2005 |
|
Obs |
4 |
|
| Pa first |
338 |
|
Pa last |
51.6 |
|
P.A. Now (θ) |
51.6° |
|
| Sep first |
0.2 |
|
Sep last |
0.113 |
|
Sep. Now (ρ) |
0.113" |
|
| Mag pri |
7.01 |
|
Mag sec |
|
|
delta mag (ΔM) |
|
|
Spectral class |
A3IV (white) |
|
| Pri motion ra |
+020 |
|
Sec motion ra |
|
|
| Pri motion dec |
+003 |
|
Sec motion dec |
|
|
| Notes |
N
X
(See Notes, Dubious double) |
|
Nature of this double is uncertain.
20449+1219 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
106443 |
20 44 55 +12 18 46 |
B 2910 Aa,Ab |
2005 |
4 |
52 |
0.1 |
7.01 |
|
|
|
<=== |
| Show |
HD 197684 |
106443 |
20 44 55 +12 18 46 |
STF 2723 AB |
2018 |
182 |
140 |
1.0 |
7.01 |
8.30 |
1.29 |
Y |
|
| Show |
|
106443 |
20 44 55 +12 18 46 |
BU 1492 AC |
2015 |
6 |
30 |
37.0 |
7.01 |
13.00 |
5.99 |
|
|
Quadruple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Delphinus |
|
SAO |
106443 |
|
HIP |
102390 |
|
Tycho2 |
1097-02486-1 |
|
| Gaia DR2 |
1754983736625945216 |
|
HD |
197684 |
|
BD |
BD+11 4368 |
|
Distance |
209.21 |
|
| Distance ly |
682.44 |
|
