17491+4054 BVD 257
17h 49m 04.59s +40° 54' 26.2" P.A. 297.00 sep 17.9 mag 16.70,17.30
| Coord 2000 |
17491+4054 |
|
Discov num |
BVD 257 |
|
Comp |
|
|
Coord arcsec 2000 |
17 49 04.59 +40 54 26.2 |
|
| Date first |
1998 |
|
Date last |
2016 |
|
Obs |
5 |
|
| Pa first |
297 |
|
Pa last |
297.1 |
|
P.A. Now (θ) |
297.1° |
|
| Sep first |
17.9 |
|
Sep last |
17.931 |
|
Sep. Now (ρ) |
17.931" |
|
| Mag pri |
16.70 |
|
Mag sec |
17.30 |
|
delta mag (ΔM) |
0.6 |
|
Spectral class |
|
|
| Pri motion ra |
-025 |
|
Sec motion ra |
-023 |
|
| Pri motion dec |
-055 |
|
Sec motion dec |
-059 |
|
| Notes |
V
(Proper motion indicates physical) |
|
rPM=0.071 (< 0.3, Physical double)
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Hercules |
|
Gaia DR2 |
1344777457497819648 |
|
