23019+4220 BLA 12 Aa,Ab
23h 01m 55.26s +42° 19' 33.5" P.A. 127.00 sep 0.1 mag 3.80,5.70 Sp B6III+A2 dist. 210.53 pc (686.75 l.y.)
| Coord 2000 |
23019+4220 |
|
Discov num |
BLA 12 |
|
Comp |
Aa,Ab |
|
Coord arcsec 2000 |
23 01 55.26 +42 19 33.5 |
|
| Date first |
1975 |
|
Date last |
1997 |
|
Obs |
5 |
|
| Pa first |
45 |
|
Pa last |
127.4 |
|
P.A. Now (θ) |
100.8° |
|
| Sep first |
0.0 |
|
Sep last |
0.054 |
|
Sep. Now (ρ) |
0.07" |
|
| Mag pri |
3.80 |
|
Mag sec |
5.70 |
|
delta mag (ΔM) |
1.9 |
|
Spectral class |
B6III+A2 (blue-white/white) |
|
| Pri motion ra |
+023 |
|
Sec motion ra |
|
|
| Pri motion dec |
-006 |
|
Sec motion dec |
|
|
| Notes |
N
O
(See Notes, Orbital solution) |
|
This double is physical.
23019+4220 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
52609 |
23 01 55 +42 19 34 |
BLA 12 Aa,Ab |
1997 |
5 |
127 |
0.1 |
3.80 |
5.70 |
1.90 |
Y |
<=== |
| Show |
Omi And |
52609 |
23 01 55 +42 19 34 |
WRH 37 AB |
2020 |
115 |
177 |
0.2 |
3.73 |
6.03 |
2.30 |
Y |
|
Triple system
2 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Andromeda |
|
SAO |
52609 |
|
HIP |
113726 |
|
Tycho2 |
3224-03434-1 |
|
| Gaia DR2 |
1931192500886411136 |
|
HD |
217675 |
|
HR |
8762 |
|
GC |
32095 |
|
| BD |
BD+41 4664 |
|
Bayer |
Omicron Andromedae |
|
Bayer name |
Omi And |
|
Flamsteed |
1 Andromedae |
|
| Flamsteed name |
1 And |
|
FK5 |
869 |
|
Distance |
210.53 |
|
Distance ly |
686.75 |
|
| Bayer greek |
ο And |
|
ORBITAL ELEMENTS
| Period (P) | 5.64y | ± 0.04 |
Periastron (T) | 2003.6y | ± 0.2 |
Semi-major axis (a) | 0.061a | ± 0.005 |
| Eccentricity (e) | 0.22 | ± 0.04 |
Inclination (i) | 152° | ± 13 |
Longitude of periastron (ω) | 55° | ± 32 |
| Node (Ω) | 318° | ± 35 |
Notes | n | |
Reference | Zhu2010 | |
| Equinox | | |
Last observation | 1997 | |
Grade | 3 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
119.0 |
0.070 |
| 2001 |
76.7 |
0.067 |
| 2002 |
25.4 |
0.060 |
| 2003 |
320.4 |
0.052 |
| 2004 |
222.6 |
0.044 |
| 2005 |
147.8 |
0.063 |
| 2006 |
104.1 |
0.070 |
| 2007 |
59.7 |
0.064 |
| 2008 |
3.9 |
0.057 |
| 2009 |
290.3 |
0.047 |
| 2010 |
188.6 |
0.050 |
| 2011 |
130.9 |
0.068 |
| 2012 |
89.0 |
0.069 |
| 2013 |
41.0 |
0.062 |
| 2014 |
340.5 |
0.055 |
| 2015 |
253.4 |
0.043 |
| 2016 |
163.3 |
0.058 |
| 2017 |
115.6 |
0.070 |
| 2018 |
73.0 |
0.067 |
| 2019 |
20.8 |
0.059 |
| 2020 |
314.3 |
0.051 |
| 2021 |
214.3 |
0.045 |
| 2022 |
143.9 |
0.065 |
| 2023 |
100.8 |
0.070 |
| 2024 |
55.7 |
0.064 |
| 2025 |
358.8 |
0.057 |
| 2026 |
282.7 |
0.046 |
| 2027 |
182.3 |
0.052 |
| 2028 |
127.4 |
0.069 |
| 2029 |
85.5 |
0.069 |
| 2030 |
36.7 |
0.061 |
|
|
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
|
|
|
|
|
|
|
|
Measures: green=micrometric, blue=interferometric, purple=photographic |
|
