21180+3405 RAO 621
21h 17m 59.04s +34° 04' 30.1" P.A. 293.00 sep 1.1 mag 11.30,12.90 Sp M0.0V
| Coord 2000 |
21180+3405 |
|
Discov num |
RAO 621 |
|
Comp |
|
|
Coord arcsec 2000 |
21 17 59.04 +34 04 30.1 |
|
| Date first |
2014 |
|
Date last |
2016 |
|
Obs |
3 |
|
| Pa first |
293 |
|
Pa last |
292.9 |
|
P.A. Now (θ) |
292.9° |
|
| Sep first |
1.1 |
|
Sep last |
1.141 |
|
Sep. Now (ρ) |
1.141" |
|
| Mag pri |
11.30 |
|
Mag sec |
12.90 |
|
delta mag (ΔM) |
1.6 |
|
Spectral class |
M0.0V (red) |
|
| Pri motion ra |
+053 |
|
Sec motion ra |
|
|
| Pri motion dec |
-030 |
|
Sec motion dec |
|
|
| Notes |
R
(Red magnitudes) |
|
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Cygnus |
|
Tycho2 |
2710-00691-1 |
|
