23107+2631 BU 852 BC
23h 10m 38.20s +26° 31' 35.6" P.A. 319.00 sep 1.3 mag 10.50,11.00
| Coord 2000 |
23107+2631 |
|
Discov num |
BU 852 |
|
Comp |
BC |
|
Coord arcsec 2000 |
23 10 38.20 +26 31 35.6 |
|
| Date first |
1881 |
|
Date last |
2016 |
|
Obs |
20 |
|
| Pa first |
11 |
|
Pa last |
319 |
|
P.A. Now (θ) |
319° |
|
| Sep first |
1.2 |
|
Sep last |
1.29 |
|
Sep. Now (ρ) |
1.29" |
|
| Mag pri |
10.50 |
|
Mag sec |
11.00 |
|
delta mag (ΔM) |
0.5 |
|
Spectral class |
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| Pri motion ra |
+048 |
|
Sec motion ra |
|
|
| Pri motion dec |
-015 |
|
Sec motion dec |
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|
| Notes |
O
(Orbital solution) |
|
This double is physical.
23107+2631 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
91061 |
23 10 42 +26 31 23 |
HDS 3301 Aa,Ab |
2012 |
7 |
160 |
0.8 |
7.21 |
10.91 |
3.70 |
|
|
| Show |
HD 218806 |
91061 |
23 10 42 +26 31 23 |
BU 852 AB |
2016 |
16 |
283 |
58.3 |
7.21 |
10.71 |
3.50 |
|
|
| Show |
|
|
23 10 38 +26 31 36 |
BU 852 BC |
2016 |
20 |
319 |
1.3 |
10.50 |
11.00 |
0.50 |
Y |
<=== |
| Show |
|
|
23 10 38 +26 31 36 |
BU 852 BD |
2015 |
5 |
220 |
20.5 |
10.50 |
13.70 |
3.20 |
|
|
Quintuple system
4 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Pegasus |
|
Gaia DR2 |
2845192156000462592 |
|
ADS |
16567 |
|
ORBITAL ELEMENTS
| Period (P) | 944.658y | ± 495.9087 |
Periastron (T) | 1852.7987y | ± 17.3864 |
Semi-major axis (a) | 5.40623a | ± 3.43218 |
| Eccentricity (e) | 0.90861 | ± 0.08544 |
Inclination (i) | 98.414° | ± 6.012 |
Longitude of periastron (ω) | 283.374° | ± 14.446 |
| Node (Ω) | 22.87° | ± 6.944 |
Notes | | |
Reference | Izm2019 | |
| Equinox | | |
Last observation | 2015 | |
Grade | 5 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
325.3 |
1.169 |
| 2001 |
324.8 |
1.167 |
| 2002 |
324.3 |
1.165 |
| 2003 |
323.8 |
1.163 |
| 2004 |
323.3 |
1.162 |
| 2005 |
322.8 |
1.160 |
| 2006 |
322.3 |
1.158 |
| 2007 |
321.8 |
1.157 |
| 2008 |
321.3 |
1.155 |
| 2009 |
320.8 |
1.154 |
| 2010 |
320.3 |
1.153 |
| 2011 |
319.8 |
1.151 |
| 2012 |
319.2 |
1.150 |
| 2013 |
318.7 |
1.149 |
| 2014 |
318.2 |
1.148 |
| 2015 |
317.7 |
1.147 |
| 2016 |
317.2 |
1.146 |
| 2017 |
316.7 |
1.145 |
| 2018 |
316.1 |
1.145 |
| 2019 |
315.6 |
1.144 |
| 2020 |
315.1 |
1.143 |
| 2021 |
314.6 |
1.143 |
| 2022 |
314.0 |
1.142 |
| 2023 |
313.5 |
1.142 |
| 2024 |
313.0 |
1.142 |
| 2025 |
312.5 |
1.141 |
| 2026 |
312.0 |
1.141 |
| 2027 |
311.4 |
1.141 |
| 2028 |
310.9 |
1.141 |
| 2029 |
310.4 |
1.141 |
| 2030 |
309.9 |
1.141 |
|
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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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