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 |
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Comp |
AB |
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Coord arcsec 2000 |
00 02 10.18 +27 04 55.6 |
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Date first |
1878 |
|
Date last |
2017 |
|
Obs |
209 |
|
Pa first |
274 |
|
Pa last |
95.8 |
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P.A. Now (θ) |
151.2° |
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Sep first |
0.7 |
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Sep last |
0.594 |
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Sep. Now (ρ) |
0.785" |
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Mag pri |
5.83 |
|
Mag sec |
8.90 |
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delta mag (ΔM) |
3.07 |
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Spectral class |
G5Vb+K5V (yellow/yellow-orange) |
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Pri motion ra |
+830 |
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Sec motion ra |
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Pri motion dec |
-989 |
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Sec motion dec |
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Notes |
N
O
(See Notes, Orbital solution) |
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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 |
|
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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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![grafico orbita](grafico_orbita.php?wdskey=00022%2B2705BU++733AB)
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
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![wds00022%2B2705a.png orbit plot](http://www.astro.gsu.edu/wds/orb6/PNG/wds00022%2B2705a.png)
Measures: green=micrometric, blue=interferometric, purple=photographic |
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