21089+4815 ARG 42 BC
21h 08m 54.44s +48° 14' 59.3" P.A. 306.00 sep 45.9 mag 9.67,11.29 Sp G0
| Coord 2000 |
21089+4815 |
|
Discov num |
ARG 42 |
|
Comp |
BC |
|
Coord arcsec 2000 |
21 08 54.44 +48 14 59.3 |
|
| Date first |
1899 |
|
Date last |
2018 |
|
Obs |
16 |
|
| Pa first |
304 |
|
Pa last |
305.6 |
|
P.A. Now (θ) |
305.6° |
|
| Sep first |
44.8 |
|
Sep last |
45.854 |
|
Sep. Now (ρ) |
45.854" |
|
| Mag pri |
9.67 |
|
Mag sec |
11.29 |
|
delta mag (ΔM) |
1.62 |
|
Spectral class |
G0 (yellow) |
|
| Pri motion ra |
-005 |
|
Sec motion ra |
-004 |
|
| Pri motion dec |
-021 |
|
Sec motion dec |
-001 |
|
| Notes |
|
|
rPM=0.928
This double is not physical.
21089+4815 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
|
21 08 53 +48 14 48 |
ARG 42 AB |
2019 |
47 |
60 |
21.0 |
8.81 |
9.67 |
0.86 |
|
|
| Show |
|
|
21 08 53 +48 14 48 |
ARG 42 AC |
2018 |
17 |
333 |
41.8 |
8.81 |
11.29 |
2.48 |
|
|
| Show |
|
|
21 08 54 +48 14 59 |
ARG 42 BC |
2018 |
16 |
306 |
45.9 |
9.67 |
11.29 |
1.62 |
|
<=== |
Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Cygnus |
|
Tycho2 |
3592-07450-1 |
|
Gaia DR2 |
2165332913611692160 |
|
