17104+2107 ALP 20 AB
17h 10m 25.45s +21° 07' 15.5" P.A. 278.00 sep 7.7 mag 15.74,
| Coord 2000 |
17104+2107 |
|
Discov num |
ALP 20 |
|
Comp |
AB |
|
Coord arcsec 2000 |
17 10 25.45 +21 07 15.5 |
|
| Date first |
2001 |
|
Date last |
2001 |
|
Obs |
1 |
|
| Pa first |
278 |
|
Pa last |
278 |
|
P.A. Now (θ) |
278° |
|
| Sep first |
7.7 |
|
Sep last |
7.7 |
|
Sep. Now (ρ) |
7.7" |
|
| Mag pri |
15.74 |
|
Mag sec |
|
|
delta mag (ΔM) |
|
|
Spectral class |
|
|
| Pri motion ra |
|
|
Sec motion ra |
|
|
| Pri motion dec |
|
|
Sec motion dec |
|
|
| Notes |
N
U
K
(See Notes, Proper motion indicates non-physical, K-band or other infrared magnitudes) |
|
Visually invisible, K-band or other infrared star : Summary line gives K-band or other infrared (>1 micron) magnitudes
This double is not physical.
17104+2107 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
|
17 10 25 +21 07 16 |
ALP 20 AB |
2001 |
1 |
278 |
7.7 |
15.74 |
|
|
|
<=== |
| Show |
|
|
17 10 25 +21 07 16 |
ALP 20 AC |
2001 |
1 |
124 |
24.0 |
15.74 |
|
|
|
|
Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Hercules |
|
Gaia DR2 |
4567789051779439872 |
|
