19127+2435 A 264 AB (HD 179736)
19h 12m 42.44s +24° 34' 36.3" P.A. 286.00 sep 3.6 mag 8.20,11.90 Sp F5 dist. 72.46 pc (236.36 l.y.)
| Coord 2000 |
19127+2435 |
|
Discov num |
A 264 |
|
Comp |
AB |
|
Coord arcsec 2000 |
19 12 42.44 +24 34 36.3 |
|
| Date first |
1898 |
|
Date last |
2016 |
|
Obs |
21 |
|
| Pa first |
293 |
|
Pa last |
285.5 |
|
P.A. Now (θ) |
285.5° |
|
| Sep first |
2.7 |
|
Sep last |
3.59 |
|
Sep. Now (ρ) |
3.59" |
|
| Mag pri |
8.20 |
|
Mag sec |
11.90 |
|
delta mag (ΔM) |
3.7 |
|
Spectral class |
F5 (yellow-white) |
|
| Pri motion ra |
+062 |
|
Sec motion ra |
|
|
| Pri motion dec |
-011 |
|
Sec motion dec |
|
|
| Notes |
N
O
(See Notes, Orbital solution) |
|
This double is physical.
19127+2435 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
86934 |
19 12 42 +24 34 36 |
HDS 2720 Aa,Ab |
2018 |
7 |
85 |
0.2 |
8.57 |
9.64 |
1.07 |
|
|
| Show |
HD 179736 |
86934 |
19 12 42 +24 34 36 |
A 264 AB |
2016 |
21 |
286 |
3.6 |
8.20 |
11.90 |
3.70 |
Y |
<=== |
| Show |
|
86934 |
19 12 42 +24 34 36 |
MAD 7 AC |
2012 |
20 |
287 |
3.4 |
8.20 |
12.80 |
4.60 |
Y |
|
| Show |
|
86934 |
19 12 42 +24 34 36 |
A 264 AD |
2015 |
4 |
116 |
26.3 |
8.20 |
15.00 |
6.80 |
|
|
| Show |
|
|
19 12 42 +24 34 37 |
MAD 7 BC |
2012 |
9 |
165 |
0.3 |
11.90 |
12.80 |
0.90 |
|
|
| Show |
|
|
19 12 44 +24 34 25 |
A 264 DE |
2015 |
8 |
118 |
5.0 |
15.00 |
15.40 |
0.40 |
|
|
Sextuple system
5 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 179736 |
|
Constellation |
Vulpecula |
|
SAO |
86934 |
|
HIP |
94387 |
|
| Tycho2 |
2127-01716-1 |
|
Gaia DR2 |
2023570066253033984 |
|
HD |
179736 |
|
ADS |
12166 |
|
| BD |
BD+24 3677 |
|
Distance |
72.46 |
|
Distance ly |
236.36 |
|
ORBITAL ELEMENTS
| Period (P) | 1281.3196y | ± 665.5813 |
Periastron (T) | 2123.7633y | ± 290.48 |
Semi-major axis (a) | 7.04727a | ± 4.90702 |
| Eccentricity (e) | 0.80383 | ± 0.16569 |
Inclination (i) | 90.691° | ± 1.579 |
Longitude of periastron (ω) | 260.975° | ± 13.121 |
| Node (Ω) | 107.961° | ± 3.276 |
Notes | n | |
Reference | Izm2019 | |
| Equinox | | |
Last observation | 2008 | |
Grade | 5 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
289.0 |
3.380 |
| 2001 |
289.0 |
3.382 |
| 2002 |
289.0 |
3.384 |
| 2003 |
289.0 |
3.386 |
| 2004 |
289.0 |
3.388 |
| 2005 |
289.0 |
3.389 |
| 2006 |
288.9 |
3.391 |
| 2007 |
288.9 |
3.392 |
| 2008 |
288.9 |
3.393 |
| 2009 |
288.9 |
3.394 |
| 2010 |
288.9 |
3.395 |
| 2011 |
288.9 |
3.396 |
| 2012 |
288.9 |
3.396 |
| 2013 |
288.9 |
3.397 |
| 2014 |
288.9 |
3.397 |
| 2015 |
288.9 |
3.397 |
| 2016 |
288.9 |
3.397 |
| 2017 |
288.8 |
3.397 |
| 2018 |
288.8 |
3.396 |
| 2019 |
288.8 |
3.396 |
| 2020 |
288.8 |
3.395 |
| 2021 |
288.8 |
3.394 |
| 2022 |
288.8 |
3.393 |
| 2023 |
288.8 |
3.392 |
| 2024 |
288.8 |
3.390 |
| 2025 |
288.8 |
3.388 |
| 2026 |
288.8 |
3.386 |
| 2027 |
288.8 |
3.384 |
| 2028 |
288.8 |
3.382 |
| 2029 |
288.7 |
3.379 |
| 2030 |
288.7 |
3.377 |
|
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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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