17107+2104 TDT 251
17h 10m 42.45s +21° 04' 08.9" P.A. 302.00 sep 0.5 mag 11.72,12.21
| Coord 2000 |
17107+2104 |
|
Discov num |
TDT 251 |
|
Comp |
|
|
Coord arcsec 2000 |
17 10 42.45 +21 04 08.9 |
|
| Date first |
1991 |
|
Date last |
2016 |
|
Obs |
4 |
|
| Pa first |
291 |
|
Pa last |
302.4 |
|
P.A. Now (θ) |
302.4° |
|
| Sep first |
0.8 |
|
Sep last |
0.544 |
|
Sep. Now (ρ) |
0.544" |
|
| Mag pri |
11.72 |
|
Mag sec |
12.21 |
|
delta mag (ΔM) |
0.49 |
|
Spectral class |
|
|
| Pri motion ra |
+008 |
|
Sec motion ra |
+008 |
|
| Pri motion dec |
-041 |
|
Sec motion dec |
-041 |
|
| Notes |
|
|
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Hercules |
|
Tycho2 |
1547-01221-1 |
|