19062+3026 STF 2454 AB (HD 178091)
19h 06m 09.37s +30° 26' 18.8" P.A. 291.00 sep 1.3 mag 8.34,9.72 Sp K0 dist. 77.34 pc (252.28 l.y.)
Coord 2000 |
19062+3026 |
|
Discov num |
STF2454 |
|
Comp |
AB |
|
Coord arcsec 2000 |
19 06 09.37 +30 26 18.8 |
|
Date first |
1831 |
|
Date last |
2016 |
|
Obs |
180 |
|
Pa first |
204 |
|
Pa last |
290.6 |
|
P.A. Now (θ) |
290.6° |
|
Sep first |
0.8 |
|
Sep last |
1.348 |
|
Sep. Now (ρ) |
1.348" |
|
Mag pri |
8.34 |
|
Mag sec |
9.72 |
|
delta mag (ΔM) |
1.38 |
|
Spectral class |
K0 (yellow-orange) |
|
Pri motion ra |
+064 |
|
Sec motion ra |
+064 |
|
Pri motion dec |
-005 |
|
Sec motion dec |
-005 |
|
Notes |
N
O
(See Notes, Orbital solution) |
|
This double is physical.
19062+3026 SYSTEM COMPONENTS
Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
Show |
HD 178091 |
67811 |
19 06 09 +30 26 19 |
STF 2454 AB |
2016 |
180 |
291 |
1.3 |
8.34 |
9.72 |
1.38 |
Y |
<=== |
Show |
|
67811 |
19 06 09 +30 26 19 |
DRD 2 AC |
2015 |
4 |
261 |
31.3 |
8.34 |
13.50 |
5.16 |
|
|
Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
Name |
HD 178091 |
|
Constellation |
Lyra |
|
SAO |
67811 |
|
HIP |
93798 |
|
Tycho2 |
2640-01110-1 |
|
Gaia DR2 |
2042453731775320704 |
|
HD |
178091 |
|
GC |
26307 |
|
ADS |
12040 |
|
BD |
BD+30 3413 |
|
Distance |
77.34 |
|
Distance ly |
252.28 |
|
ORBITAL ELEMENTS
Period (P) | 559.46y | |
Periastron (T) | 1700.68y | |
Semi-major axis (a) | 1.421a | |
Eccentricity (e) | 0.55 | |
Inclination (i) | 65.2° | |
Longitude of periastron (ω) | 292.9° | |
Node (Ω) | 145.1° | |
Notes | n | |
Reference | Msn2014b | |
Equinox | 2000 | |
Last observation | 2011 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
286.0 |
1.297 |
2001 |
286.3 |
1.301 |
2002 |
286.5 |
1.306 |
2003 |
286.8 |
1.310 |
2004 |
287.1 |
1.314 |
2005 |
287.3 |
1.319 |
2006 |
287.6 |
1.323 |
2007 |
287.8 |
1.327 |
2008 |
288.1 |
1.332 |
2009 |
288.4 |
1.336 |
2010 |
288.6 |
1.340 |
2011 |
288.9 |
1.345 |
2012 |
289.1 |
1.349 |
2013 |
289.4 |
1.353 |
2014 |
289.6 |
1.357 |
2015 |
289.9 |
1.361 |
2016 |
290.1 |
1.365 |
2017 |
290.3 |
1.370 |
2018 |
290.6 |
1.374 |
2019 |
290.8 |
1.378 |
2020 |
291.1 |
1.382 |
2021 |
291.3 |
1.386 |
2022 |
291.5 |
1.390 |
2023 |
291.8 |
1.394 |
2024 |
292.0 |
1.398 |
2025 |
292.2 |
1.402 |
2026 |
292.5 |
1.405 |
2027 |
292.7 |
1.409 |
2028 |
292.9 |
1.413 |
2029 |
293.2 |
1.417 |
2030 |
293.4 |
1.421 |
|
|
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
|
|
|
|
|
|
|
|
Measures: green=micrometric, blue=interferometric, purple=photographic |
|