08549+2612 A 2131 AB
08h 54m 55.99s +26° 11' 53.8" P.A. 335.00 sep 0.2 mag 6.95,9.02 Sp G2V+K0V dist. 49.02 pc (159.9 l.y.)
| Coord 2000 |
08549+2612 |
|
Discov num |
A 2131 |
|
Comp |
AB |
|
Coord arcsec 2000 |
08 54 55.99 +26 11 53.8 |
|
| Date first |
1910 |
|
Date last |
2014 |
|
Obs |
94 |
|
| Pa first |
255 |
|
Pa last |
334.6 |
|
P.A. Now (θ) |
153.9° |
|
| Sep first |
0.3 |
|
Sep last |
0.214 |
|
Sep. Now (ρ) |
0.269" |
|
| Mag pri |
6.95 |
|
Mag sec |
9.02 |
|
delta mag (ΔM) |
2.07 |
|
Spectral class |
G2V+K0V (yellow/yellow-orange) |
|
| Pri motion ra |
+061 |
|
Sec motion ra |
+054 |
|
| Pri motion dec |
-451 |
|
Sec motion dec |
-441 |
|
| Notes |
N
O
(See Notes, Orbital solution) |
|
rPM=0.027 (< 0.3, Physical double)
This double is physical.
08549+2612 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
80503 |
08 54 56 +26 11 54 |
A 2131 AB |
2014 |
94 |
335 |
0.2 |
6.95 |
9.02 |
2.07 |
Y |
<=== |
| Show |
|
80503 |
08 54 56 +26 11 54 |
HO 357 AB,C |
2011 |
8 |
359 |
83.3 |
6.75 |
13.66 |
6.91 |
|
|
Triple system
4 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Cancer |
|
SAO |
80503 |
|
HIP |
43766 |
|
Tycho2 |
1946-01937-1 |
|
| HD |
76095 |
|
GC |
12310 |
|
ADS |
7082 |
|
BD |
BD+26 1865 |
|
| Distance |
49.02 |
|
Distance ly |
159.9 |
|
ORBITAL ELEMENTS
| Period (P) | 45.02y | |
Periastron (T) | 1973.16y | |
Semi-major axis (a) | 0.347a | |
| Eccentricity (e) | 0.475 | |
Inclination (i) | 43.5° | |
Longitude of periastron (ω) | 257.5° | |
| Node (Ω) | 162.1° | |
Notes | n | |
Reference | Msn2000a | |
| Equinox | | |
Last observation | 1997 | |
Grade | 2 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
254.5 |
0.361 |
| 2001 |
259.3 |
0.357 |
| 2002 |
264.2 |
0.353 |
| 2003 |
269.1 |
0.349 |
| 2004 |
274.2 |
0.345 |
| 2005 |
279.4 |
0.341 |
| 2006 |
284.8 |
0.337 |
| 2007 |
290.3 |
0.332 |
| 2008 |
295.9 |
0.327 |
| 2009 |
301.8 |
0.321 |
| 2010 |
307.9 |
0.313 |
| 2011 |
314.4 |
0.303 |
| 2012 |
321.4 |
0.291 |
| 2013 |
329.0 |
0.275 |
| 2014 |
337.8 |
0.254 |
| 2015 |
348.4 |
0.228 |
| 2016 |
2.0 |
0.197 |
| 2017 |
21.2 |
0.163 |
| 2018 |
49.1 |
0.137 |
| 2019 |
83.3 |
0.136 |
| 2020 |
111.8 |
0.162 |
| 2021 |
131.1 |
0.198 |
| 2022 |
144.2 |
0.236 |
| 2023 |
153.9 |
0.269 |
| 2024 |
161.5 |
0.297 |
| 2025 |
168.0 |
0.321 |
| 2026 |
173.6 |
0.340 |
| 2027 |
178.6 |
0.356 |
| 2028 |
183.3 |
0.368 |
| 2029 |
187.7 |
0.378 |
| 2030 |
192.0 |
0.385 |
|
|
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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