02039+4220 STT 38 BC
02h 03m 53.92s +42° 19' 47.5" P.A. 120.00 sep 0.3 mag 5.30,6.50 Sp B8V+A0V dist. 120.48 pc (393.01 l.y.)
| Coord 2000 |
02039+4220 |
|
Discov num |
STT 38 |
|
Comp |
BC |
|
Coord arcsec 2000 |
02 03 53.92 +42 19 47.5 |
|
| Date first |
1843 |
|
Date last |
2021 |
|
Obs |
381 |
|
| Pa first |
118 |
|
Pa last |
119.5 |
|
P.A. Now (θ) |
116.2° |
|
| Sep first |
0.5 |
|
Sep last |
0.312 |
|
Sep. Now (ρ) |
0.27" |
|
| Mag pri |
5.30 |
|
Mag sec |
6.50 |
|
delta mag (ΔM) |
1.2 |
|
Spectral class |
B8V+A0V (blue-white/white) |
|
| Pri motion ra |
+017 |
|
Sec motion ra |
|
|
| Pri motion dec |
-047 |
|
Sec motion dec |
|
|
| Notes |
N
O
(See Notes, Orbital solution) |
|
This double is physical.
02039+4220 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
Almach |
37734 |
02 03 54 +42 19 48 |
STF 205 A,BC |
2021 |
366 |
63 |
9.5 |
2.31 |
5.02 |
2.71 |
|
|
| Show |
|
37734 |
02 03 54 +42 19 48 |
BAR 22 AD |
1898 |
1 |
245 |
27.9 |
2.31 |
15.00 |
12.69 |
|
|
| Show |
|
37734 |
02 03 54 +42 19 48 |
STT 38 BC |
2021 |
381 |
120 |
0.3 |
5.30 |
6.50 |
1.20 |
Y |
<=== |
Quadruple system
5 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Andromeda |
|
SAO |
37734 |
|
HIP |
9640 |
|
Tycho2 |
2837-02311-2 |
|
| HD |
12534 |
|
HR |
603 |
|
GC |
2477 |
|
ADS |
1630 |
|
| BD |
BD+41 395 |
|
Bayer |
Gamma 1 Andromedae |
|
Bayer name |
Gam1 And |
|
FK5 |
73 |
|
| Distance |
120.48 |
|
Distance ly |
393.01 |
|
Bayer greek |
γ1 And |
|
ORBITAL ELEMENTS
| Period (P) | 62.63y | |
Periastron (T) | 1951.98y | |
Semi-major axis (a) | 0.317a | |
| Eccentricity (e) | 0.874 | |
Inclination (i) | 104.8° | |
Longitude of periastron (ω) | 163.4° | |
| Node (Ω) | 103.2° | |
Notes | n | |
Reference | Doc2017a | |
| Equinox | 2000 | |
Last observation | 2010 | |
Grade | 2 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
103.5 |
0.476 |
| 2001 |
103.2 |
0.460 |
| 2002 |
102.8 |
0.443 |
| 2003 |
102.5 |
0.424 |
| 2004 |
102.0 |
0.404 |
| 2005 |
101.6 |
0.381 |
| 2006 |
101.0 |
0.357 |
| 2007 |
100.4 |
0.329 |
| 2008 |
99.7 |
0.300 |
| 2009 |
98.8 |
0.267 |
| 2010 |
97.6 |
0.230 |
| 2011 |
96.0 |
0.188 |
| 2012 |
93.3 |
0.139 |
| 2013 |
87.0 |
0.081 |
| 2014 |
27.6 |
0.016 |
| 2015 |
270.6 |
0.039 |
| 2016 |
180.7 |
0.028 |
| 2017 |
138.3 |
0.065 |
| 2018 |
128.0 |
0.106 |
| 2019 |
123.3 |
0.144 |
| 2020 |
120.6 |
0.179 |
| 2021 |
118.7 |
0.212 |
| 2022 |
117.3 |
0.242 |
| 2023 |
116.2 |
0.270 |
| 2024 |
115.3 |
0.297 |
| 2025 |
114.5 |
0.321 |
| 2026 |
113.9 |
0.344 |
| 2027 |
113.3 |
0.366 |
| 2028 |
112.8 |
0.386 |
| 2029 |
112.4 |
0.405 |
| 2030 |
111.9 |
0.423 |
|
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Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
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Measures: green=micrometric, blue=interferometric, purple=photographic |
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