21161+4444 MCN 2
21h 16m 06.80s +44° 44' 07.2" P.A. 303.00 sep 16.0 mag 12.70,13.50 Sp M2.5V+M0V
Coord 2000 |
21161+4444 |
|
Discov num |
MCN 2 |
|
Comp |
|
|
Coord arcsec 2000 |
21 16 06.80 +44 44 07.2 |
|
Date first |
1954 |
|
Date last |
2010 |
|
Obs |
6 |
|
Pa first |
309 |
|
Pa last |
303.1 |
|
P.A. Now (θ) |
303.1° |
|
Sep first |
16.8 |
|
Sep last |
16 |
|
Sep. Now (ρ) |
16" |
|
Mag pri |
12.70 |
|
Mag sec |
13.50 |
|
delta mag (ΔM) |
0.8 |
|
Spectral class |
M2.5V+M0V (red/red) |
|
Pri motion ra |
-009 |
|
Sec motion ra |
-009 |
|
Pri motion dec |
+000 |
|
Sec motion dec |
-002 |
|
Notes |
V
(Proper motion indicates physical) |
|
rPM=0.217 (< 0.3, Physical double)
This double is physical.
OTHER CATALOGS AND DESIGNATIONS