20169+4022 BU 661 AB (NSV12981)
20h 16m 55.28s +40° 21' 54.3" P.A. 69.00 sep 12.3 mag 5.24,11.50 Sp K3.5IIab dist. 483.09 pc (1575.84 l.y.)
| Coord 2000 |
20169+4022 |
|
Discov num |
BU 661 |
|
Comp |
AB |
|
Coord arcsec 2000 |
20 16 55.28 +40 21 54.3 |
|
| Date first |
1878 |
|
Date last |
2014 |
|
Obs |
16 |
|
| Pa first |
67 |
|
Pa last |
68.7 |
|
P.A. Now (θ) |
68.7° |
|
| Sep first |
12.6 |
|
Sep last |
12.331 |
|
Sep. Now (ρ) |
12.331" |
|
| Mag pri |
5.24 |
|
Mag sec |
11.50 |
|
delta mag (ΔM) |
6.26 |
|
Spectral class |
K3.5IIab (yellow-orange) |
|
| Pri motion ra |
+004 |
|
Sec motion ra |
|
|
| Pri motion dec |
-004 |
|
Sec motion dec |
|
|
| Notes |
|
|
Nature of this double is uncertain.
20169+4022 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
NSV12981 |
49410 |
20 16 55 +40 21 54 |
BU 661 AB |
2014 |
16 |
69 |
12.3 |
5.24 |
11.50 |
6.26 |
|
<=== |
| Show |
|
49410 |
20 16 55 +40 21 54 |
BU 661 AC |
2014 |
5 |
217 |
111.7 |
5.44 |
13.68 |
8.24 |
|
|
Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Var name |
NSV12981 |
|
Constellation |
Cygnus |
|
SAO |
49410 |
|
HIP |
99968 |
|
| Tycho2 |
3155-02323-1 |
|
Gaia DR2 |
2062313797982404608 |
|
HD |
193092 |
|
HR |
7759 |
|
| GC |
28197 |
|
ADS |
13640 |
|
BD |
BD+39 4114 |
|
Distance |
483.09 |
|
| Distance ly |
1575.84 |
|
