20001+3423 HU 1308 AB (HD 189705)
20h 00m 08.51s +34° 23' 01.1" P.A. 28.00 sep 0.5 mag 9.55,9.86 Sp A
| Coord 2000 |
20001+3423 |
|
Discov num |
HU 1308 |
|
Comp |
AB |
|
Coord arcsec 2000 |
20 00 08.51 +34 23 01.1 |
|
| Date first |
1905 |
|
Date last |
2016 |
|
Obs |
22 |
|
| Pa first |
2 |
|
Pa last |
27.6 |
|
P.A. Now (θ) |
27.6° |
|
| Sep first |
0.5 |
|
Sep last |
0.52 |
|
Sep. Now (ρ) |
0.52" |
|
| Mag pri |
9.55 |
|
Mag sec |
9.86 |
|
delta mag (ΔM) |
0.31 |
|
Spectral class |
A (white) |
|
| Pri motion ra |
+004 |
|
Sec motion ra |
+004 |
|
| Pri motion dec |
+001 |
|
Sec motion dec |
+001 |
|
| Notes |
|
|
Nature of this double is uncertain.
20001+3423 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
HD 189705 |
69236 |
20 00 09 +34 23 01 |
HU 1308 AB |
2016 |
22 |
28 |
0.5 |
9.55 |
9.86 |
0.31 |
|
<=== |
| Show |
|
69236 |
20 00 09 +34 23 01 |
SCA 180 AC |
2017 |
1 |
35 |
0.4 |
9.55 |
9.80 |
0.25 |
|
|
| Show |
|
|
20 00 09 +34 23 01 |
SCA 180 BC |
2017 |
1 |
186 |
0.1 |
9.80 |
9.80 |
0.00 |
|
|
Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 189705 |
|
Constellation |
Cygnus |
|
SAO |
69236 |
|
Tycho2 |
2678-02028-1 |
|
| Gaia DR2 |
2058514293824162560 |
|
HD |
189705 |
|
ADS |
13235 |
|
