21098+3646 SEI 1421 AC
21h 09m 50.29s +36° 45' 51.7" P.A. 182.00 sep 7.9 mag 9.90,12.00 Sp A5
| Coord 2000 |
21098+3646 |
|
Discov num |
SEI1421 |
|
Comp |
AC |
|
Coord arcsec 2000 |
21 09 50.29 +36 45 51.7 |
|
| Date first |
1895 |
|
Date last |
2016 |
|
Obs |
11 |
|
| Pa first |
182 |
|
Pa last |
182.4 |
|
P.A. Now (θ) |
182.4° |
|
| Sep first |
8.1 |
|
Sep last |
7.86 |
|
Sep. Now (ρ) |
7.86" |
|
| Mag pri |
9.90 |
|
Mag sec |
12.00 |
|
delta mag (ΔM) |
2.1 |
|
Spectral class |
A5 (white) |
|
| Pri motion ra |
-002 |
|
Sec motion ra |
-003 |
|
| Pri motion dec |
-016 |
|
Sec motion dec |
-016 |
|
| Notes |
|
|
rPM=0.061 (< 0.3, Physical double)
This double is physical.
21098+3646 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
|
21 09 50 +36 45 52 |
WSI 50 AB |
2016 |
5 |
346 |
4.9 |
9.90 |
12.50 |
2.60 |
|
|
| Show |
|
|
21 09 50 +36 45 52 |
SEI 1421 AC |
2016 |
11 |
182 |
7.9 |
9.90 |
12.00 |
2.10 |
|
<=== |
Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Cygnus |
|
Tycho2 |
2714-01080-1 |
|
Gaia DR2 |
1868536315391271296 |
|
