21230+2858 STF 2792 AB
21h 23m 05.00s +28° 57' 18.3" P.A. 331.00 sep 7.4 mag 9.19,10.63 Sp A7 dist. 246.91 pc (805.42 l.y.)
| Coord 2000 |
21230+2858 |
|
Discov num |
STF2792 |
|
Comp |
AB |
|
Coord arcsec 2000 |
21 23 05.00 +28 57 18.3 |
|
| Date first |
1828 |
|
Date last |
2018 |
|
Obs |
26 |
|
| Pa first |
332 |
|
Pa last |
330.5 |
|
P.A. Now (θ) |
330.5° |
|
| Sep first |
6.0 |
|
Sep last |
7.412 |
|
Sep. Now (ρ) |
7.412" |
|
| Mag pri |
9.19 |
|
Mag sec |
10.63 |
|
delta mag (ΔM) |
1.44 |
|
Spectral class |
A7 (white) |
|
| Pri motion ra |
+003 |
|
Sec motion ra |
+005 |
|
| Pri motion dec |
-003 |
|
Sec motion dec |
-006 |
|
| Notes |
|
|
rPM=0.462
Nature of this double is uncertain.
21230+2858 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
|
21 23 05 +28 57 18 |
STF 2792 AB |
2018 |
26 |
331 |
7.4 |
9.19 |
10.63 |
1.44 |
|
<=== |
| Show |
|
|
21 23 05 +28 57 18 |
STF 2792 AC |
2015 |
8 |
161 |
22.8 |
9.17 |
12.90 |
3.73 |
|
|
Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Cygnus |
|
HIP |
105579 |
|
Tycho2 |
2199-01236-1 |
|
Gaia DR2 |
1848600692101182080 |
|
| BD |
BD+28 4072 |
|
Distance |
246.91 |
|
Distance ly |
805.42 |
|
