21087+1717 HEI 184
21h 08m 37.95s +17° 17' 20.8" P.A. 62.00 sep 2.9 mag 12.47,12.80
| Coord 2000 |
21087+1717 |
|
Discov num |
HEI 184 |
|
Comp |
|
|
Coord arcsec 2000 |
21 08 37.95 +17 17 20.8 |
|
| Date first |
1980 |
|
Date last |
2016 |
|
Obs |
5 |
|
| Pa first |
66 |
|
Pa last |
62 |
|
P.A. Now (θ) |
62° |
|
| Sep first |
2.5 |
|
Sep last |
2.9 |
|
Sep. Now (ρ) |
2.9" |
|
| Mag pri |
12.47 |
|
Mag sec |
12.80 |
|
delta mag (ΔM) |
0.33 |
|
Spectral class |
|
|
| Pri motion ra |
-001 |
|
Sec motion ra |
|
|
| Pri motion dec |
-008 |
|
Sec motion dec |
|
|
| Notes |
|
|
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Delphinus |
|
Tycho2 |
1653-00959-1 |
|
Gaia DR2 |
1763983239298177664 |
|
