23524+7533 BU 996 AB (HD 223778)
23h 52m 25.28s +75° 32' 40.5" P.A. 305.00 sep 1.9 mag 6.49,11.40 Sp K3V dist. 10.89 pc (35.52 l.y.)
| Coord 2000 |
23524+7533 |
|
Discov num |
BU 996 |
|
Comp |
AB |
|
Coord arcsec 2000 |
23 52 25.28 +75 32 40.5 |
|
| Date first |
1880 |
|
Date last |
2012 |
|
Obs |
16 |
|
| Pa first |
65 |
|
Pa last |
304.7 |
|
P.A. Now (θ) |
304.7° |
|
| Sep first |
5.5 |
|
Sep last |
1.91 |
|
Sep. Now (ρ) |
1.91" |
|
| Mag pri |
6.49 |
|
Mag sec |
11.40 |
|
delta mag (ΔM) |
4.91 |
|
Spectral class |
K3V (yellow-orange) |
|
| Pri motion ra |
+314 |
|
Sec motion ra |
|
|
| Pri motion dec |
+054 |
|
Sec motion dec |
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|
| Notes |
N
O
(See Notes, Orbital solution) |
|
This double is physical.
23524+7533 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
HD 223778 |
10879 |
23 52 25 +75 32 40 |
BU 996 AB |
2012 |
16 |
305 |
1.9 |
6.49 |
11.40 |
4.91 |
Y |
<=== |
| Show |
|
10879 |
23 52 25 +75 32 40 |
BU 996 AC |
2003 |
12 |
142 |
146.4 |
6.49 |
9.14 |
2.65 |
|
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Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 223778 |
|
Constellation |
Cepheus |
|
SAO |
10879 |
|
HIP |
117712 |
|
| Tycho2 |
4602-00552-1 |
|
Gaia DR2 |
2232348941889476608 |
|
HD |
223778 |
|
HR |
9038 |
|
| GC |
33120 |
|
ADS |
17062 |
|
GL |
Gl 909A |
|
BD |
BD+74 1047 |
|
| Distance |
10.89 |
|
Distance ly |
35.52 |
|
ORBITAL ELEMENTS
| Period (P) | 290y | |
Periastron (T) | 2015y | |
Semi-major axis (a) | 4.14a | |
| Eccentricity (e) | 0.55 | |
Inclination (i) | 49.58° | |
Longitude of periastron (ω) | 134.14° | |
| Node (Ω) | 93.91° | |
Notes | n | |
Reference | Hle1994 | |
| Equinox | 2000 | |
Last observation | 1983 | |
Grade | 5 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
153.2 |
1.652 |
| 2001 |
157.6 |
1.580 |
| 2002 |
162.4 |
1.514 |
| 2003 |
167.7 |
1.455 |
| 2004 |
173.3 |
1.405 |
| 2005 |
179.3 |
1.365 |
| 2006 |
185.6 |
1.336 |
| 2007 |
192.2 |
1.318 |
| 2008 |
198.9 |
1.313 |
| 2009 |
205.5 |
1.320 |
| 2010 |
212.0 |
1.339 |
| 2011 |
218.3 |
1.368 |
| 2012 |
224.3 |
1.406 |
| 2013 |
230.0 |
1.453 |
| 2014 |
235.3 |
1.504 |
| 2015 |
240.2 |
1.560 |
| 2016 |
244.7 |
1.619 |
| 2017 |
249.0 |
1.679 |
| 2018 |
252.9 |
1.739 |
| 2019 |
256.6 |
1.798 |
| 2020 |
260.0 |
1.855 |
| 2021 |
263.3 |
1.910 |
| 2022 |
266.4 |
1.963 |
| 2023 |
269.3 |
2.012 |
| 2024 |
272.1 |
2.058 |
| 2025 |
274.7 |
2.101 |
| 2026 |
277.3 |
2.141 |
| 2027 |
279.8 |
2.178 |
| 2028 |
282.2 |
2.211 |
| 2029 |
284.5 |
2.242 |
| 2030 |
286.7 |
2.271 |
|
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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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