16568-2309 BU 1117 (24 Oph)
16h 56m 48.01s -23° 09' 01.0" P.A. 304.00 sep 1.0 mag 6.25,6.32 Sp A0V dist. 93.11 pc (303.72 l.y.)
| Coord 2000 |
16568-2309 |
|
Discov num |
BU 1117 |
|
Comp |
|
|
Coord arcsec 2000 |
16 56 48.01 -23 09 01.0 |
|
| Date first |
1887 |
|
Date last |
2015 |
|
Obs |
58 |
|
| Pa first |
251 |
|
Pa last |
303.7 |
|
P.A. Now (θ) |
303.7° |
|
| Sep first |
0.4 |
|
Sep last |
1.019 |
|
Sep. Now (ρ) |
1.019" |
|
| Mag pri |
6.25 |
|
Mag sec |
6.32 |
|
delta mag (ΔM) |
0.07 |
|
Spectral class |
A0V (white) |
|
| Pri motion ra |
-011 |
|
Sec motion ra |
-011 |
|
| Pri motion dec |
-003 |
|
Sec motion dec |
-003 |
|
| Notes |
N
O
(See Notes, Orbital solution) |
|
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Name |
24 Oph |
|
Constellation |
Ophiuchus |
|
SAO |
184822 |
|
HIP |
82925 |
|
| Tycho2 |
6810-00610-1 |
|
Gaia DR2 |
4125503249615712640 |
|
HD |
152849 |
|
HR |
6291 |
|
| GC |
22824 |
|
ADS |
10265 |
|
BD |
BD-22 4249 |
|
CD |
CD-2211734 |
|
| CP |
CP-22 6278 |
|
Flamsteed |
24 Ophiuchi |
|
Flamsteed name |
24 Oph |
|
Distance |
93.11 |
|
| Distance ly |
303.72 |
|
ORBITAL ELEMENTS
| Period (P) | 1096.5033y | ± 538.5025 |
Periastron (T) | 2080.2734y | ± 86.0438 |
Semi-major axis (a) | 2.72274a | ± 1.53554 |
| Eccentricity (e) | 0.81785 | ± 0.16291 |
Inclination (i) | 82.822° | ± 9.182 |
Longitude of periastron (ω) | 251.543° | ± 24.717 |
| Node (Ω) | 133.751° | ± 6.147 |
Notes | n | |
Reference | Izm2019 | |
| Equinox | | |
Last observation | 2015 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
301.4 |
1.007 |
| 2001 |
301.6 |
1.009 |
| 2002 |
301.8 |
1.010 |
| 2003 |
301.9 |
1.012 |
| 2004 |
302.1 |
1.014 |
| 2005 |
302.3 |
1.015 |
| 2006 |
302.5 |
1.017 |
| 2007 |
302.6 |
1.018 |
| 2008 |
302.8 |
1.019 |
| 2009 |
303.0 |
1.020 |
| 2010 |
303.1 |
1.021 |
| 2011 |
303.3 |
1.022 |
| 2012 |
303.5 |
1.023 |
| 2013 |
303.6 |
1.024 |
| 2014 |
303.8 |
1.024 |
| 2015 |
304.0 |
1.025 |
| 2016 |
304.1 |
1.025 |
| 2017 |
304.3 |
1.026 |
| 2018 |
304.5 |
1.026 |
| 2019 |
304.6 |
1.026 |
| 2020 |
304.8 |
1.025 |
| 2021 |
305.0 |
1.025 |
| 2022 |
305.1 |
1.025 |
| 2023 |
305.3 |
1.024 |
| 2024 |
305.5 |
1.023 |
| 2025 |
305.6 |
1.022 |
| 2026 |
305.8 |
1.021 |
| 2027 |
306.0 |
1.020 |
| 2028 |
306.1 |
1.018 |
| 2029 |
306.3 |
1.016 |
| 2030 |
306.5 |
1.014 |
|
|
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
|
|
|
|
|
|
|
|
Measures: green=micrometric, blue=interferometric, purple=photographic |
|
