04227+1503 STT 82 AB (HD 27691)
04h 22m 44.10s +15° 03' 22.1" P.A. 323.00 sep 1.2 mag 7.31,8.63 Sp F9V dist. 43.63 pc (142.32 l.y.)
| Coord 2000 |
04227+1503 |
|
Discov num |
STT 82 |
|
Comp |
AB |
|
Coord arcsec 2000 |
04 22 44.10 +15 03 22.1 |
|
| Date first |
1843 |
|
Date last |
2021 |
|
Obs |
220 |
|
| Pa first |
238 |
|
Pa last |
323.4 |
|
P.A. Now (θ) |
322.1° |
|
| Sep first |
1.0 |
|
Sep last |
1.201 |
|
Sep. Now (ρ) |
1.197" |
|
| Mag pri |
7.31 |
|
Mag sec |
8.63 |
|
delta mag (ΔM) |
1.32 |
|
Spectral class |
F9V (yellow-white) |
|
| Pri motion ra |
+114 |
|
Sec motion ra |
+114 |
|
| Pri motion dec |
-026 |
|
Sec motion dec |
-026 |
|
| Notes |
N
O
(See Notes, Orbital solution) |
|
This double is physical.
04227+1503 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
93896 |
04 22 44 +15 03 22 |
CIA 24 Aa,Ab |
-1 |
0 |
-1 |
-1.0 |
5.70 |
8.50 |
2.80 |
|
|
| Show |
HD 27691 |
93896 |
04 22 44 +15 03 22 |
STT 82 AB |
2021 |
220 |
323 |
1.2 |
7.31 |
8.63 |
1.32 |
Y |
<=== |
| Show |
|
93896 |
04 22 44 +15 03 22 |
LDS 1166 AC |
2016 |
7 |
290 |
66.4 |
7.31 |
15.70 |
8.39 |
|
|
Quadruple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 27691 |
|
Constellation |
Taurus |
|
SAO |
93896 |
|
HIP |
20440 |
|
| Tycho2 |
1264-00755-1 |
|
Gaia DR2 |
3311221224583178368 |
|
HD |
27691 |
|
ADS |
3169 |
|
| BD |
BD+14 690 |
|
Distance |
43.63 |
|
Distance ly |
142.32 |
|
ORBITAL ELEMENTS
| Period (P) | 246.9y | |
Periastron (T) | 1892.78y | |
Semi-major axis (a) | 1.17a | |
| Eccentricity (e) | 0.277 | |
Inclination (i) | 137.8° | |
Longitude of periastron (ω) | 56.7° | |
| Node (Ω) | 197° | |
Notes | n | |
Reference | Msn2021c | |
| Equinox | | |
Last observation | 2018 | |
Grade | 3 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
342.7 |
1.315 |
| 2001 |
341.9 |
1.311 |
| 2002 |
341.0 |
1.307 |
| 2003 |
340.2 |
1.303 |
| 2004 |
339.4 |
1.299 |
| 2005 |
338.5 |
1.294 |
| 2006 |
337.7 |
1.290 |
| 2007 |
336.8 |
1.285 |
| 2008 |
335.9 |
1.280 |
| 2009 |
335.1 |
1.275 |
| 2010 |
334.2 |
1.270 |
| 2011 |
333.3 |
1.265 |
| 2012 |
332.4 |
1.260 |
| 2013 |
331.5 |
1.254 |
| 2014 |
330.6 |
1.249 |
| 2015 |
329.7 |
1.243 |
| 2016 |
328.8 |
1.238 |
| 2017 |
327.8 |
1.232 |
| 2018 |
326.9 |
1.226 |
| 2019 |
326.0 |
1.221 |
| 2020 |
325.0 |
1.215 |
| 2021 |
324.0 |
1.209 |
| 2022 |
323.1 |
1.203 |
| 2023 |
322.1 |
1.197 |
| 2024 |
321.1 |
1.192 |
| 2025 |
320.1 |
1.186 |
| 2026 |
319.1 |
1.180 |
| 2027 |
318.0 |
1.174 |
| 2028 |
317.0 |
1.168 |
| 2029 |
315.9 |
1.162 |
| 2030 |
314.9 |
1.156 |
|
|
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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