21115+4115 STT 431 BC
21h 11m 31.08s +41° 14' 27.1" P.A. 354.00 sep 57.1 mag 8.99,11.99 Sp F8 dist. 102.88 pc (335.59 l.y.)
| Coord 2000 |
21115+4115 |
|
Discov num |
STT 431 |
|
Comp |
BC |
|
Coord arcsec 2000 |
21 11 31.08 +41 14 27.1 |
|
| Date first |
1893 |
|
Date last |
2015 |
|
Obs |
8 |
|
| Pa first |
352 |
|
Pa last |
353.6 |
|
P.A. Now (θ) |
353.6° |
|
| Sep first |
51.2 |
|
Sep last |
57.118 |
|
Sep. Now (ρ) |
57.118" |
|
| Mag pri |
8.99 |
|
Mag sec |
11.99 |
|
delta mag (ΔM) |
3 |
|
Spectral class |
F8 (yellow-white) |
|
| Pri motion ra |
-013 |
|
Sec motion ra |
-005 |
|
| Pri motion dec |
-055 |
|
Sec motion dec |
-002 |
|
| Notes |
|
|
rPM=0.948
This double is not physical.
21115+4115 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
HD 201936 |
|
21 11 31 +41 14 29 |
STT 431 AB |
2018 |
77 |
127 |
2.6 |
8.80 |
8.99 |
0.19 |
|
|
| Show |
|
|
21 11 31 +41 14 29 |
STT 431 AC |
2015 |
5 |
356 |
55.4 |
8.80 |
11.99 |
3.19 |
|
|
| Show |
|
|
21 11 31 +41 14 27 |
STT 431 BC |
2015 |
8 |
354 |
57.1 |
8.99 |
11.99 |
3.00 |
|
<=== |
Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Cygnus |
|
HIP |
104614 |
|
Tycho2 |
3173-01179-2 |
|
Gaia DR2 |
1968604925917176320 |
|
| HD |
201936 |
|
BD |
BD+40 4435 |
|
Distance |
102.88 |
|
Distance ly |
335.59 |
|