04236+4226 STT 80 (HD 27650)
04h 23m 35.82s +42° 25' 40.4" P.A. 152.00 sep 0.3 mag 6.38,8.41 Sp A1pSi dist. 177.3 pc (578.35 l.y.)
| Coord 2000 |
04236+4226 |
|
Discov num |
STT 80 |
|
Comp |
|
|
Coord arcsec 2000 |
04 23 35.82 +42 25 40.4 |
|
| Date first |
1843 |
|
Date last |
1997 |
|
Obs |
82 |
|
| Pa first |
202 |
|
Pa last |
152 |
|
P.A. Now (θ) |
152° |
|
| Sep first |
0.9 |
|
Sep last |
0.323 |
|
Sep. Now (ρ) |
0.323" |
|
| Mag pri |
6.38 |
|
Mag sec |
8.41 |
|
delta mag (ΔM) |
2.03 |
|
Spectral class |
A1pSi (white) |
|
| Pri motion ra |
+021 |
|
Sec motion ra |
+021 |
|
| Pri motion dec |
-035 |
|
Sec motion dec |
-035 |
|
| Notes |
N
O
(See Notes, Orbital solution) |
|
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 27650 |
|
Constellation |
Perseus |
|
SAO |
39501 |
|
HIP |
20498 |
|
| Tycho2 |
2887-00686-1 |
|
Gaia DR2 |
228493432681102976 |
|
HD |
27650 |
|
HR |
1371 |
|
| GC |
5305 |
|
ADS |
3172 |
|
BD |
BD+42 946 |
|
Distance |
177.3 |
|
| Distance ly |
578.35 |
|
ORBITAL ELEMENTS
| Period (P) | 394y | |
Periastron (T) | 2181y | |
Semi-major axis (a) | 0.522a | |
| Eccentricity (e) | 0.52 | |
Inclination (i) | 106.7° | |
Longitude of periastron (ω) | 67.7° | |
| Node (Ω) | 13.9° | |
Notes | n | |
Reference | Zir2014a | |
| Equinox | 2000 | |
Last observation | 1997 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
150.5 |
0.316 |
| 2001 |
149.8 |
0.313 |
| 2002 |
149.2 |
0.309 |
| 2003 |
148.6 |
0.306 |
| 2004 |
147.9 |
0.303 |
| 2005 |
147.2 |
0.300 |
| 2006 |
146.5 |
0.297 |
| 2007 |
145.8 |
0.294 |
| 2008 |
145.1 |
0.291 |
| 2009 |
144.4 |
0.288 |
| 2010 |
143.7 |
0.285 |
| 2011 |
142.9 |
0.282 |
| 2012 |
142.1 |
0.279 |
| 2013 |
141.3 |
0.276 |
| 2014 |
140.5 |
0.273 |
| 2015 |
139.7 |
0.270 |
| 2016 |
138.8 |
0.267 |
| 2017 |
138.0 |
0.265 |
| 2018 |
137.1 |
0.262 |
| 2019 |
136.2 |
0.259 |
| 2020 |
135.3 |
0.257 |
| 2021 |
134.3 |
0.254 |
| 2022 |
133.4 |
0.251 |
| 2023 |
132.4 |
0.249 |
| 2024 |
131.4 |
0.247 |
| 2025 |
130.4 |
0.244 |
| 2026 |
129.4 |
0.242 |
| 2027 |
128.3 |
0.240 |
| 2028 |
127.2 |
0.237 |
| 2029 |
126.1 |
0.235 |
| 2030 |
125.0 |
0.233 |
|
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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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