21171+3546 BU 162 AB (HD 202768)
21h 17m 06.82s +35° 46' 10.3" P.A. 253.00 sep 1.2 mag 8.60,8.84 Sp A7IV dist. 162.07 pc (528.67 l.y.)
| Coord 2000 |
21171+3546 |
|
Discov num |
BU 162 |
|
Comp |
AB |
|
Coord arcsec 2000 |
21 17 06.82 +35 46 10.3 |
|
| Date first |
1873 |
|
Date last |
2018 |
|
Obs |
64 |
|
| Pa first |
240 |
|
Pa last |
252.9 |
|
P.A. Now (θ) |
252.9° |
|
| Sep first |
1.5 |
|
Sep last |
1.198 |
|
Sep. Now (ρ) |
1.198" |
|
| Mag pri |
8.60 |
|
Mag sec |
8.84 |
|
delta mag (ΔM) |
0.24 |
|
Spectral class |
A7IV (white) |
|
| Pri motion ra |
+002 |
|
Sec motion ra |
+002 |
|
| Pri motion dec |
-022 |
|
Sec motion dec |
-022 |
|
| Notes |
|
|
Nature of this double is uncertain.
21171+3546 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
HD 202768 |
71153 |
21 17 07 +35 46 10 |
BU 162 AB |
2018 |
64 |
253 |
1.2 |
8.60 |
8.84 |
0.24 |
|
<=== |
| Show |
|
71153 |
21 17 07 +35 46 10 |
BU 162 AC |
2002 |
5 |
131 |
15.6 |
8.60 |
12.60 |
4.00 |
|
|
Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 202768 |
|
Constellation |
Cygnus |
|
SAO |
71153 |
|
HIP |
105072 |
|
| Tycho2 |
2714-00413-1 |
|
Gaia DR2 |
1867727899453407104 |
|
HD |
202768 |
|
BD |
BD+35 4461 |
|
| Distance |
162.07 |
|
Distance ly |
528.67 |
|
