21427+1751 DAM 660
21h 42m 44.96s +17° 51' 16.5" P.A. 318.00 sep 0.8 mag 20.30,21.10
| Coord 2000 |
21427+1751 |
|
Discov num |
DAM 660 |
|
Comp |
|
|
Coord arcsec 2000 |
21 42 44.96 +17 51 16.5 |
|
| Date first |
1977 |
|
Date last |
1977 |
|
Obs |
1 |
|
| Pa first |
318 |
|
Pa last |
318.4 |
|
P.A. Now (θ) |
318.4° |
|
| Sep first |
0.8 |
|
Sep last |
0.79 |
|
Sep. Now (ρ) |
0.79" |
|
| Mag pri |
20.30 |
|
Mag sec |
21.10 |
|
delta mag (ΔM) |
0.8 |
|
Spectral class |
|
|
| Pri motion ra |
-246 |
|
Sec motion ra |
-237 |
|
| Pri motion dec |
-408 |
|
Sec motion dec |
-385 |
|
| Notes |
V
B
(Proper motion indicates physical, Blue magnitudes) |
|
rPM=0.052 (< 0.3, Physical double)
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
