23103+3229 BU 385 AB
23h 10m 17.15s +32° 29' 13.4" P.A. 84.00 sep 0.7 mag 7.44,8.23 Sp B9V dist. 327.87 pc (1069.51 l.y.)
| Coord 2000 |
23103+3229 |
|
Discov num |
BU 385 |
|
Comp |
AB |
|
Coord arcsec 2000 |
23 10 17.15 +32 29 13.4 |
|
| Date first |
1874 |
|
Date last |
2018 |
|
Obs |
95 |
|
| Pa first |
130 |
|
Pa last |
84.1 |
|
P.A. Now (θ) |
84.1° |
|
| Sep first |
0.4 |
|
Sep last |
0.7 |
|
Sep. Now (ρ) |
0.7" |
|
| Mag pri |
7.44 |
|
Mag sec |
8.23 |
|
delta mag (ΔM) |
0.79 |
|
Spectral class |
B9V (blue-white) |
|
| Pri motion ra |
+015 |
|
Sec motion ra |
+015 |
|
| Pri motion dec |
-004 |
|
Sec motion dec |
-004 |
|
| Notes |
O
(Orbital solution) |
|
This double is physical.
23103+3229 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
73054 |
23 10 17 +32 29 13 |
BU 385 AB |
2018 |
95 |
84 |
0.7 |
7.44 |
8.23 |
0.79 |
Y |
<=== |
| Show |
HD 218767 |
73054 |
23 10 17 +32 29 13 |
HJ 5532 AB,C |
2014 |
31 |
77 |
57.9 |
7.10 |
9.43 |
2.33 |
|
|
| Show |
|
73054 |
23 10 17 +32 29 13 |
ARN 25 AB,D |
2014 |
13 |
117 |
223.9 |
7.10 |
10.27 |
3.17 |
|
|
Quadruple system
5 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Pegasus |
|
SAO |
73054 |
|
HIP |
114415 |
|
Tycho2 |
2755-00893-1 |
|
| Gaia DR2 |
1910770687306722432 |
|
HD |
218767 |
|
GC |
32280 |
|
ADS |
16561 |
|
| BD |
BD+31 4859 |
|
Distance |
327.87 |
|
Distance ly |
1069.51 |
|
ORBITAL ELEMENTS
| Period (P) | 830y | |
Periastron (T) | 1721.18y | |
Semi-major axis (a) | 0.623a | |
| Eccentricity (e) | 0.433 | |
Inclination (i) | 131.6° | |
Longitude of periastron (ω) | 152.2° | |
| Node (Ω) | 44.2° | |
Notes | | |
Reference | Lin2010c | |
| Equinox | 2000 | |
Last observation | 2005 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
87.9 |
0.649 |
| 2001 |
87.6 |
0.651 |
| 2002 |
87.4 |
0.653 |
| 2003 |
87.2 |
0.655 |
| 2004 |
86.9 |
0.657 |
| 2005 |
86.7 |
0.659 |
| 2006 |
86.5 |
0.660 |
| 2007 |
86.2 |
0.662 |
| 2008 |
86.0 |
0.664 |
| 2009 |
85.8 |
0.666 |
| 2010 |
85.6 |
0.668 |
| 2011 |
85.3 |
0.670 |
| 2012 |
85.1 |
0.671 |
| 2013 |
84.9 |
0.673 |
| 2014 |
84.7 |
0.675 |
| 2015 |
84.4 |
0.677 |
| 2016 |
84.2 |
0.679 |
| 2017 |
84.0 |
0.680 |
| 2018 |
83.8 |
0.682 |
| 2019 |
83.6 |
0.684 |
| 2020 |
83.4 |
0.686 |
| 2021 |
83.1 |
0.688 |
| 2022 |
82.9 |
0.689 |
| 2023 |
82.7 |
0.691 |
| 2024 |
82.5 |
0.693 |
| 2025 |
82.3 |
0.695 |
| 2026 |
82.1 |
0.696 |
| 2027 |
81.9 |
0.698 |
| 2028 |
81.7 |
0.700 |
| 2029 |
81.5 |
0.702 |
| 2030 |
81.3 |
0.703 |
|
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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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