21070+4125 BU 988 AB
21h 07m 01.01s +41° 24' 47.1" P.A. 223.00 sep 1.3 mag 10.08,11.42 Sp F8
| Coord 2000 |
21070+4125 |
|
Discov num |
BU 988 |
|
Comp |
AB |
|
Coord arcsec 2000 |
21 07 01.01 +41 24 47.1 |
|
| Date first |
1880 |
|
Date last |
2015 |
|
Obs |
16 |
|
| Pa first |
238 |
|
Pa last |
222.7 |
|
P.A. Now (θ) |
222.7° |
|
| Sep first |
1.2 |
|
Sep last |
1.334 |
|
Sep. Now (ρ) |
1.334" |
|
| Mag pri |
10.08 |
|
Mag sec |
11.42 |
|
delta mag (ΔM) |
1.34 |
|
Spectral class |
F8 (yellow-white) |
|
| Pri motion ra |
+093 |
|
Sec motion ra |
+093 |
|
| Pri motion dec |
-011 |
|
Sec motion dec |
-011 |
|
| Notes |
|
|
Nature of this double is uncertain.
21070+4125 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
|
21 07 01 +41 24 47 |
BU 988 AB |
2015 |
16 |
223 |
1.3 |
10.08 |
11.42 |
1.34 |
|
<=== |
| Show |
|
|
21 07 01 +41 24 47 |
BU 988 AC |
2021 |
30 |
1 |
9.3 |
10.08 |
9.90 |
0.18 |
|
|
Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Cygnus |
|
Tycho2 |
3176-02017-2 |
|
Gaia DR2 |
1969316211162087168 |
|
