Coord 2000 | 19531-1436 |
Discov num | CHR 90 |
Comp | Coord arcsec 2000 | 19 53 06.39 -14 36 11.1 |
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Date first | 1985 |
Date last | 2018 |
Obs | 26 |
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Pa first | 190 |
Pa last | 186 |
P.A. Now (θ) | 182.7° |
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Sep first | 0.3 |
Sep last | 0.4 |
Sep. Now (ρ) | 0.42" |
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Mag pri | 9.25 |
Mag sec | 6.61 |
delta mag (ΔM) | 2.64 |
Spectral class | A2V+G5IV (white/yellow) |
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Pri motion ra | -001 |
Sec motion ra | |||||||||
Pri motion dec | -058 |
Sec motion dec | |||||||||
Notes |
Precise pa | 185.7 |
Precise sep | 0.388 |
Var name | V505 Sgr |
Constellation | Sagittarius |
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SAO | 163080 |
HIP | 97849 |
Tycho2 | 5737-00439-1 |
Gaia DR2 | 6878492245986475904 |
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HD | 187949 |
HR | 7571 |
BD | BD-14 5578 |
Distance | 119.05 |
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Distance ly | 388.34 |
last precise pa | 185.7 |
last precise sep | 0.388 |
Period (P) | 343.2y | Periastron (T) | 1998.85y | Semi-major axis (a) | 0.678a | |||
Eccentricity (e) | 0.716 | Inclination (i) | 126.5° | Longitude of periastron (ω) | 73.5° | |||
Node (Ω) | 3.3° | Note | Grade | 4 | (1=Definitive, 9=Indet.) | |||
Equinox | Last observation | 2018 |
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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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coord_2000 | discov_num | comp | epoch | obs | pa | sep | mag_pri | mag_sec | spectr | notes | coord_arcsec_2000 |
19531-1436 | CHR 90 | 2006 | 18 | 216 | 0.2 | 9.25 | 6.61 | A0V+F8IV | NOD | 195306.39-143611.1 | |
19531-1436 | CHR 90 | 2009 | 19 | 204 | 0.2 | 9.25 | 6.61 | A0V+F8IV | NOD | 195306.39-143611.1 | |
19531-1436 | CHR 90 | 2010 | 24 | 200 | 0.3 | 9.25 | 6.61 | A0V+F8IV | NOD | 195306.39-143611.1 | |
19531-1436 | CHR 90 | 2015 | 25 | 10 | 0.4 | 9.25 | 6.61 | A0V+F8IV | NO | 195306.39-143611.1 | |
19531-1436 | CHR 90 | 2018 | 26 | 186 | 0.4 | 9.25 | 6.61 | A0V+F8IV | NO | 195306.39-143611.1 |