23440+2922 AGC 14 (78 Peg)
23h 43m 59.48s +29° 21' 41.2" P.A. 284.00 sep 0.8 mag 5.07,8.10 Sp G8III dist. 68.78 pc (224.36 l.y.)
| Coord 2000 |
23440+2922 |
|
Discov num |
AGC 14 |
|
Comp |
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|
Coord arcsec 2000 |
23 43 59.48 +29 21 41.2 |
|
| Date first |
1876 |
|
Date last |
2016 |
|
Obs |
97 |
|
| Pa first |
192 |
|
Pa last |
283.9 |
|
P.A. Now (θ) |
283.9° |
|
| Sep first |
1.5 |
|
Sep last |
0.837 |
|
Sep. Now (ρ) |
0.837" |
|
| Mag pri |
5.07 |
|
Mag sec |
8.10 |
|
delta mag (ΔM) |
3.03 |
|
Spectral class |
G8III (yellow) |
|
| Pri motion ra |
+071 |
|
Sec motion ra |
+071 |
|
| Pri motion dec |
-039 |
|
Sec motion dec |
-039 |
|
| Notes |
N
O
(See Notes, Orbital solution) |
|
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Name |
78 Peg |
|
Constellation |
Pegasus |
|
SAO |
91457 |
|
HIP |
117073 |
|
| Tycho2 |
2257-02521-1 |
|
Gaia DR2 |
2867726990408448896 |
|
HD |
222842 |
|
HR |
8997 |
|
| GC |
32954 |
|
ADS |
16957 |
|
BD |
BD+28 4627 |
|
Flamsteed |
78 Pegasi |
|
| Flamsteed name |
78 Peg |
|
Distance |
68.78 |
|
Distance ly |
224.36 |
|
ORBITAL ELEMENTS
| Period (P) | 635.4863y | ± 272.4977 |
Periastron (T) | 2030.8498y | ± 9.9338 |
Semi-major axis (a) | 2.46268a | ± 1.6063 |
| Eccentricity (e) | 0.83388 | ± 0.13375 |
Inclination (i) | 67.013° | ± 12.518 |
Longitude of periastron (ω) | 243.369° | ± 17.737 |
| Node (Ω) | 123.767° | ± 7.198 |
Notes | n | |
Reference | Izm2019 | |
| Equinox | | |
Last observation | 2007 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
270.1 |
0.835 |
| 2001 |
271.2 |
0.831 |
| 2002 |
272.2 |
0.826 |
| 2003 |
273.3 |
0.822 |
| 2004 |
274.4 |
0.817 |
| 2005 |
275.6 |
0.812 |
| 2006 |
276.7 |
0.806 |
| 2007 |
277.8 |
0.800 |
| 2008 |
279.0 |
0.794 |
| 2009 |
280.2 |
0.787 |
| 2010 |
281.4 |
0.779 |
| 2011 |
282.6 |
0.771 |
| 2012 |
283.9 |
0.762 |
| 2013 |
285.2 |
0.753 |
| 2014 |
286.5 |
0.742 |
| 2015 |
287.9 |
0.731 |
| 2016 |
289.3 |
0.718 |
| 2017 |
290.7 |
0.704 |
| 2018 |
292.3 |
0.688 |
| 2019 |
293.9 |
0.670 |
| 2020 |
295.6 |
0.651 |
| 2021 |
297.4 |
0.629 |
| 2022 |
299.3 |
0.604 |
| 2023 |
301.5 |
0.577 |
| 2024 |
303.8 |
0.546 |
| 2025 |
306.5 |
0.511 |
| 2026 |
309.5 |
0.472 |
| 2027 |
313.2 |
0.428 |
| 2028 |
317.7 |
0.380 |
| 2029 |
323.7 |
0.329 |
| 2030 |
331.8 |
0.276 |
|
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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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