20003+1757 HU 352 AB
20h 00m 21.02s +17° 56' 34.3" P.A. 198.00 sep 0.2 mag 9.00,9.50 Sp A0
| Coord 2000 |
20003+1757 |
|
Discov num |
HU 352 |
|
Comp |
AB |
|
Coord arcsec 2000 |
20 00 21.02 +17 56 34.3 |
|
| Date first |
1901 |
|
Date last |
2011 |
|
Obs |
18 |
|
| Pa first |
262 |
|
Pa last |
197.8 |
|
P.A. Now (θ) |
197.8° |
|
| Sep first |
0.2 |
|
Sep last |
0.18 |
|
Sep. Now (ρ) |
0.18" |
|
| Mag pri |
9.00 |
|
Mag sec |
9.50 |
|
delta mag (ΔM) |
0.5 |
|
Spectral class |
A0 (white) |
|
| Pri motion ra |
-001 |
|
Sec motion ra |
|
|
| Pri motion dec |
-001 |
|
Sec motion dec |
|
|
| Notes |
|
|
Nature of this double is uncertain.
20003+1757 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
105531 |
20 00 21 +17 56 34 |
HU 352 AB |
2011 |
18 |
198 |
0.2 |
9.00 |
9.50 |
0.50 |
|
<=== |
| Show |
HD 189615 |
105531 |
20 00 21 +17 56 34 |
LBU 8 AB,C |
2019 |
12 |
27 |
63.8 |
8.76 |
11.38 |
2.62 |
|
|
| Show |
|
105531 |
20 00 21 +17 56 34 |
LBU 8 AB,D |
2019 |
8 |
352 |
65.3 |
8.76 |
11.30 |
2.54 |
|
|
Quadruple system
5 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Sagitta |
|
SAO |
105531 |
|
Tycho2 |
1621-01665-1 |
|
Gaia DR2 |
1822011958340021504 |
|
| HD |
189615 |
|
