19236+3313 THA 1 AB
19h 23m 34.01s +33° 13' 19.0" P.A. 214.00 sep 1.6 mag 4.80,19.30 Sp G9V+T8 dist. 15.76 pc (51.41 l.y.)
| Coord 2000 |
19236+3313 |
|
Discov num |
THA 1 |
|
Comp |
AB |
|
Coord arcsec 2000 |
19 23 34.01 +33 13 19.0 |
|
| Date first |
2009 |
|
Date last |
2017 |
|
Obs |
21 |
|
| Pa first |
198 |
|
Pa last |
213.5 |
|
P.A. Now (θ) |
213.5° |
|
| Sep first |
1.9 |
|
Sep last |
1.588 |
|
Sep. Now (ρ) |
1.588" |
|
| Mag pri |
4.80 |
|
Mag sec |
19.30 |
|
delta mag (ΔM) |
14.5 |
|
Spectral class |
G9V+T8 (yellow/brown dwarf) |
|
| Pri motion ra |
+082 |
|
Sec motion ra |
+074 |
|
| Pri motion dec |
+163 |
|
Sec motion dec |
+187 |
|
| Notes |
N
O
K
(See Notes, Orbital solution, K-band or other infrared magnitudes) |
|
Visually invisible, K-band or other infrared star : Summary line gives K-band or other infrared (>1 micron) magnitudes
rPM=0.126 (< 0.3, Physical double)
This double is physical.
19236+3313 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
68239 |
19 23 34 +33 13 19 |
THA 1 AB |
2017 |
21 |
214 |
1.6 |
4.80 |
19.30 |
14.50 |
Y |
<=== |
| Show |
|
|
19 23 34 +33 13 19 |
THA 1 AC |
2014 |
7 |
168 |
1.2 |
4.80 |
18.50 |
13.70 |
|
|
| Show |
|
|
19 23 34 +33 13 19 |
BWL 68 AD |
2017 |
4 |
213 |
2.6 |
4.80 |
|
|
|
|
| Show |
|
68239 |
19 23 34 +33 13 19 |
BWL 68 AE |
2017 |
2 |
180 |
1.6 |
4.80 |
|
|
|
|
Quintuple system
5 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Lyra |
|
SAO |
68239 |
|
HIP |
95319 |
|
Tycho2 |
2658-02556-1 |
|
| Gaia DR2 |
2046207670631964928 |
|
HD |
182488 |
|
HR |
7368 |
|
GL |
Gl 758 |
|
| BD |
BD+32 3411 |
|
Distance |
15.76 |
|
Distance ly |
51.41 |
|
ORBITAL ELEMENTS
| Period (P) | 56270d (154.06y) | ± 23000 |
Periastron (T) | 70102d (2050.809y) | ± 4000 |
Semi-major axis (a) | 1.9a | ± 0.3 |
| Eccentricity (e) | 0.24 | ± 0.11 |
Inclination (i) | 51.6° | ± 5.4 |
Longitude of periastron (ω) | 155° | ± 56 |
| Node (Ω) | 180.6° | ± 3.9 |
Notes | n | |
Reference | Bdt2021b | |
| Equinox | | |
Last observation | | |
Grade | 5 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
190.5 |
2.140 |
| 2001 |
191.6 |
2.116 |
| 2002 |
192.7 |
2.091 |
| 2003 |
193.9 |
2.064 |
| 2004 |
195.1 |
2.036 |
| 2005 |
196.4 |
2.007 |
| 2006 |
197.7 |
1.976 |
| 2007 |
199.0 |
1.943 |
| 2008 |
200.4 |
1.910 |
| 2009 |
201.8 |
1.875 |
| 2010 |
203.3 |
1.838 |
| 2011 |
204.8 |
1.801 |
| 2012 |
206.4 |
1.762 |
| 2013 |
208.1 |
1.723 |
| 2014 |
209.8 |
1.682 |
| 2015 |
211.7 |
1.641 |
| 2016 |
213.6 |
1.599 |
| 2017 |
215.6 |
1.556 |
| 2018 |
217.8 |
1.513 |
| 2019 |
220.1 |
1.470 |
| 2020 |
222.5 |
1.427 |
| 2021 |
225.1 |
1.384 |
| 2022 |
227.8 |
1.341 |
| 2023 |
230.8 |
1.299 |
| 2024 |
233.9 |
1.258 |
| 2025 |
237.2 |
1.219 |
| 2026 |
240.7 |
1.182 |
| 2027 |
244.5 |
1.146 |
| 2028 |
248.5 |
1.114 |
| 2029 |
252.7 |
1.085 |
| 2030 |
257.1 |
1.059 |
|
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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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