11361+1251 STF 1554 (HD 100797)
11h 36m 06.78s +12° 51' 18.8" P.A. 215.00 sep 0.3 mag 9.44,9.63 Sp G0V+G0/1V dist. 97.56 pc (318.24 l.y.)
Coord 2000 |
11361+1251 |
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Discov num |
STF1554 |
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Comp |
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Coord arcsec 2000 |
11 36 06.78 +12 51 18.8 |
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Date first |
1829 |
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Date last |
2016 |
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Obs |
60 |
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Pa first |
255 |
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Pa last |
214.7 |
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P.A. Now (θ) |
214.7° |
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Sep first |
1.0 |
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Sep last |
0.298 |
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Sep. Now (ρ) |
0.298" |
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Mag pri |
9.44 |
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Mag sec |
9.63 |
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delta mag (ΔM) |
0.19 |
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Spectral class |
G0V+G0/1V (yellow/yellow) |
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Pri motion ra |
-092 |
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Sec motion ra |
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Pri motion dec |
+007 |
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Sec motion dec |
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Notes |
O
(Orbital solution) |
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This double is physical.
OTHER CATALOGS AND DESIGNATIONS
Name |
HD 100797 |
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Constellation |
Leo |
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SAO |
99686 |
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HIP |
56589 |
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Tycho2 |
0863-00536-1 |
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HD |
100797 |
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GC |
15902 |
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ADS |
8230 |
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BD |
BD+13 2433 |
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Distance |
97.56 |
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Distance ly |
318.24 |
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ORBITAL ELEMENTS
Period (P) | 478.88y | ± 72.49 |
Periastron (T) | 1962.44y | ± 0.47 |
Semi-major axis (a) | 0.868a | ± 0.066 |
Eccentricity (e) | 0.902 | ± 0.011 |
Inclination (i) | 74.8° | ± 0.8 |
Longitude of periastron (ω) | 308.6° | ± 1.9 |
Node (Ω) | 84.6° | ± 0.9 |
Notes | | |
Reference | FMR2020a | |
Equinox | 2000 | |
Last observation | 2010 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
202.1 |
0.210 |
2001 |
203.6 |
0.217 |
2002 |
204.9 |
0.223 |
2003 |
206.1 |
0.229 |
2004 |
207.3 |
0.235 |
2005 |
208.5 |
0.242 |
2006 |
209.5 |
0.248 |
2007 |
210.5 |
0.254 |
2008 |
211.5 |
0.261 |
2009 |
212.4 |
0.267 |
2010 |
213.3 |
0.274 |
2011 |
214.1 |
0.280 |
2012 |
214.9 |
0.287 |
2013 |
215.7 |
0.293 |
2014 |
216.4 |
0.299 |
2015 |
217.1 |
0.306 |
2016 |
217.8 |
0.312 |
2017 |
218.5 |
0.319 |
2018 |
219.1 |
0.325 |
2019 |
219.7 |
0.332 |
2020 |
220.2 |
0.338 |
2021 |
220.8 |
0.344 |
2022 |
221.3 |
0.351 |
2023 |
221.8 |
0.357 |
2024 |
222.3 |
0.363 |
2025 |
222.8 |
0.370 |
2026 |
223.3 |
0.376 |
2027 |
223.7 |
0.382 |
2028 |
224.1 |
0.389 |
2029 |
224.6 |
0.395 |
2030 |
225.0 |
0.401 |
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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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