| Coord 2000 | 20151+3742 |
Discov num | COU2416 |
Comp | Coord arcsec 2000 | 20 15 04.77 +37 41 45.1 |
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| Date first | 1986 |
Date last | 2012 |
Obs | 19 |
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| Pa first | 232 |
Pa last | 126 |
P.A. Now (θ) | 150.1° |
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| Sep first | 0.2 |
Sep last | 0.3 |
Sep. Now (ρ) | 0.28" |
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| Mag pri | 8.00 |
Mag sec | 8.50 |
delta mag (ΔM) | 0.5 |
Spectral class | F0V (yellow-white) |
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| Pri motion ra | +034 |
Sec motion ra | |||||||||
| Pri motion dec | +024 |
Sec motion dec | |||||||||
| Notes | |||||||||||
| Precise pa | 126.1 |
Precise sep | 0.293 |
Constellation | Cygnus |
SAO | 69696 |
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| Tycho2 | 3151-01432-1 |
Gaia DR2 | 2060847324369028224 |
HD | 192744 |
last precise pa | 126.1 |
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| last precise sep | 0.293 |
| Period (P) | 56.88y | Periastron (T) | 1995.77y | Semi-major axis (a) | 0.223a | |||
| Eccentricity (e) | 0.477 | Inclination (i) | 37.8° | Longitude of periastron (ω) | 248.7° | |||
| Node (Ω) | 95.7° | Note | Grade | 4 | (1=Definitive, 9=Indet.) | |||
| Equinox | 2000 | Last observation | 2009 |
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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 |
| 20151+3742 | COU2416 | 2005 | 12 | 100 | 0.2 | 8.00 | 8.50 | F0V | NO | 201504.77+374145.1 | |
| 20151+3742 | COU2416 | 2007 | 13 | 111 | 0.2 | 8.00 | 8.50 | F0V | NO | 201504.77+374145.1 | |
| 20151+3742 | COU2416 | 2009 | 15 | 117 | 0.3 | 8.00 | 8.50 | F0V | NO | 201504.77+374145.1 | |
| 20151+3742 | COU2416 | 2011 | 16 | 118 | 0.3 | 8.00 | 8.50 | F0V | NO | 201504.77+374145.1 |