00022+2705 BU 733 AB (85 Peg)
00h 02m 10.18s +27° 04' 55.6" P.A. 96.00 sep 0.6 mag 5.83,8.90 Sp G5Vb+K5V dist. 12.17 pc (39.7 l.y.)
| Coord 2000 |
00022+2705 |
|
Discov num |
BU 733 |
|
Comp |
AB |
|
Coord arcsec 2000 |
00 02 10.18 +27 04 55.6 |
|
| Date first |
1878 |
|
Date last |
2017 |
|
Obs |
209 |
|
| Pa first |
274 |
|
Pa last |
95.8 |
|
P.A. Now (θ) |
151.2° |
|
| Sep first |
0.7 |
|
Sep last |
0.594 |
|
Sep. Now (ρ) |
0.785" |
|
| Mag pri |
5.83 |
|
Mag sec |
8.90 |
|
delta mag (ΔM) |
3.07 |
|
Spectral class |
G5Vb+K5V (yellow/yellow-orange) |
|
| Pri motion ra |
+830 |
|
Sec motion ra |
|
|
| Pri motion dec |
-989 |
|
Sec motion dec |
|
|
| Notes |
N
O
(See Notes, Orbital solution) |
|
This double is physical.
00022+2705 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
85 Peg |
91669 |
00 02 10 +27 04 56 |
BU 733 AB |
2017 |
209 |
96 |
0.6 |
5.83 |
8.90 |
3.07 |
Y |
<=== |
| Show |
|
91668 |
00 02 10 +27 04 56 |
BU 733 AC |
2013 |
66 |
324 |
177.5 |
5.83 |
9.88 |
4.05 |
|
|
| Show |
|
91669 |
00 02 10 +27 04 56 |
BU 733 AD |
1998 |
16 |
307 |
206.4 |
5.83 |
14.20 |
8.37 |
|
|
| Show |
|
91669 |
00 02 10 +27 04 56 |
HSW 1 AE |
1998 |
2 |
309 |
100.9 |
5.83 |
15.67 |
9.84 |
|
|
Quintuple system
5 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Name |
85 Peg |
|
Var name |
NSV14809 Peg |
|
Constellation |
Pegasus |
|
SAO |
91669 |
|
| HIP |
171 |
|
Tycho2 |
1732-02731-1 |
|
HD |
224930 |
|
HR |
9088 |
|
| GC |
33334 |
|
ADS |
17175 |
|
GL |
Gl 914A |
|
BD |
BD+26 4734 |
|
| Flamsteed |
85 Pegasi |
|
Flamsteed name |
85 Peg |
|
Distance |
12.17 |
|
Distance ly |
39.7 |
|
ORBITAL ELEMENTS
| Period (P) | 26.28y | |
Periastron (T) | 1989.4y | |
Semi-major axis (a) | 0.83a | |
| Eccentricity (e) | 0.38 | |
Inclination (i) | 49° | |
Longitude of periastron (ω) | 96° | |
| Node (Ω) | 290° | |
Notes | n | |
Reference | Sod1999 | |
| Equinox | 2000 | |
Last observation | | |
Grade | 1 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
183.2 |
0.749 |
| 2001 |
193.4 |
0.747 |
| 2002 |
203.7 |
0.751 |
| 2003 |
213.7 |
0.763 |
| 2004 |
223.3 |
0.780 |
| 2005 |
232.5 |
0.801 |
| 2006 |
241.1 |
0.823 |
| 2007 |
249.4 |
0.841 |
| 2008 |
257.4 |
0.853 |
| 2009 |
265.2 |
0.853 |
| 2010 |
273.2 |
0.836 |
| 2011 |
281.8 |
0.796 |
| 2012 |
291.6 |
0.727 |
| 2013 |
304.1 |
0.622 |
| 2014 |
322.9 |
0.487 |
| 2015 |
356.2 |
0.362 |
| 2016 |
44.3 |
0.357 |
| 2017 |
78.9 |
0.475 |
| 2018 |
98.7 |
0.604 |
| 2019 |
112.2 |
0.697 |
| 2020 |
123.0 |
0.754 |
| 2021 |
132.7 |
0.782 |
| 2022 |
141.9 |
0.789 |
| 2023 |
151.2 |
0.785 |
| 2024 |
160.6 |
0.774 |
| 2025 |
170.3 |
0.761 |
| 2026 |
180.3 |
0.751 |
| 2027 |
190.6 |
0.747 |
| 2028 |
200.8 |
0.749 |
| 2029 |
210.9 |
0.759 |
| 2030 |
220.6 |
0.775 |
|
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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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