Coord 2000 | 20320+2548 |
Discov num | STF2695 |
Comp | Coord arcsec 2000 | 20 31 58.19 +25 48 18.1 |
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Date first | 1830 |
Date last | 2016 |
Obs | 141 |
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Pa first | 79 |
Pa last | 259 |
P.A. Now (θ) | 258.2° |
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Sep first | 0.8 |
Sep last | 0.4 |
Sep. Now (ρ) | 0.44" |
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Mag pri | 6.58 |
Mag sec | 8.75 |
delta mag (ΔM) | 2.17 |
Spectral class | Am+A2 (white/white) |
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Pri motion ra | +035 |
Sec motion ra | |||||||||
Pri motion dec | -016 |
Sec motion dec | |||||||||
Notes |
Precise pa | 259.4 |
Precise sep | 0.381 |
Constellation | Vulpecula |
SAO | 88808 |
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HIP | 101300 |
Tycho2 | 2161-00330-1 |
Gaia DR2 | 91159294208 |
HD | 195692 |
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HR | 7849 |
ADS | 13964 |
BD | BD+25 4272 |
Distance | 87.03 |
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Distance ly | 283.89 |
last precise pa | 259.4 |
last precise sep | 0.381 |
Period (P) | 269y | Periastron (T) | 2016.37y | Semi-major axis (a) | 0.773a | |||
Eccentricity (e) | 0.431 | Inclination (i) | 84.1° | Longitude of periastron (ω) | 174.1° | |||
Node (Ω) | 77.4° | Note | Grade | 3 | (1=Definitive, 9=Indet.) | |||
Equinox | 2000 | Last observation | 2004 |
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 |
20320+2548 | STF2695 | 2004 | 135 | 248 | 0.3 | 6.58 | 8.75 | Am+A2 | NOD | 203158.19+254818.1 | |
20320+2548 | STF2695 | 2016 | 141 | 259 | 0.4 | 6.58 | 8.75 | Am+A2 | NO | 203158.19+254818.1 |