17590+3003 STF 2259 (HD 164253)
17h 59m 03.63s +30° 02' 56.1" P.A. 277.00 sep 19.6 mag 7.27,8.44 Sp G5II+A dist. 114.55 pc (373.66 l.y.)
| Coord 2000 |
17590+3003 |
|
Discov num |
STF2259 |
|
Comp |
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Coord arcsec 2000 |
17 59 03.63 +30 02 56.1 |
|
| Date first |
1781 |
|
Date last |
2017 |
|
Obs |
61 |
|
| Pa first |
275 |
|
Pa last |
276.7 |
|
P.A. Now (θ) |
276.7° |
|
| Sep first |
18.3 |
|
Sep last |
19.57 |
|
Sep. Now (ρ) |
19.57" |
|
| Mag pri |
7.27 |
|
Mag sec |
8.44 |
|
delta mag (ΔM) |
1.17 |
|
Spectral class |
G5II+A (yellow/white) |
|
| Pri motion ra |
+004 |
|
Sec motion ra |
+004 |
|
| Pri motion dec |
+008 |
|
Sec motion dec |
+008 |
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| Notes |
N
O
T
(See Notes, Orbital solution, Parallax indicates physical) |
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This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 164253 |
|
Constellation |
Hercules |
|
SAO |
66535 |
|
HIP |
88051 |
|
| Tycho2 |
2608-02413-1 |
|
Gaia DR2 |
4596677311049795840 |
|
HD |
164253 |
|
GC |
24493 |
|
| ADS |
10955 |
|
BD |
BD+30 3096 |
|
Distance |
114.55 |
|
Distance ly |
373.66 |
|
ORBITAL ELEMENTS
| Period (P) | 4610.09767c | |
Periastron (T) | 4305.1559c | |
Semi-major axis (a) | 25.847a | |
| Eccentricity (e) | 0.935 | |
Inclination (i) | 119.31° | |
Longitude of periastron (ω) | 4.41° | |
| Node (Ω) | 86.41° | |
Notes | n | |
Reference | FMR2021a | |
| Equinox | | |
Last observation | | |
Grade | 5 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
168.7 |
1.618 |
| 2001 |
168.6 |
1.618 |
| 2002 |
168.6 |
1.618 |
| 2003 |
168.6 |
1.617 |
| 2004 |
168.5 |
1.617 |
| 2005 |
168.5 |
1.617 |
| 2006 |
168.5 |
1.616 |
| 2007 |
168.4 |
1.616 |
| 2008 |
168.4 |
1.616 |
| 2009 |
168.4 |
1.615 |
| 2010 |
168.3 |
1.615 |
| 2011 |
168.3 |
1.615 |
| 2012 |
168.3 |
1.614 |
| 2013 |
168.2 |
1.614 |
| 2014 |
168.2 |
1.614 |
| 2015 |
168.2 |
1.613 |
| 2016 |
168.1 |
1.613 |
| 2017 |
168.1 |
1.612 |
| 2018 |
168.0 |
1.612 |
| 2019 |
168.0 |
1.612 |
| 2020 |
168.0 |
1.611 |
| 2021 |
167.9 |
1.611 |
| 2022 |
167.9 |
1.611 |
| 2023 |
167.9 |
1.610 |
| 2024 |
167.8 |
1.610 |
| 2025 |
167.8 |
1.610 |
| 2026 |
167.8 |
1.609 |
| 2027 |
167.7 |
1.609 |
| 2028 |
167.7 |
1.609 |
| 2029 |
167.7 |
1.608 |
| 2030 |
167.6 |
1.608 |
|
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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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