Coord 2000 | 20102+4357 |
Discov num | STT 400 |
Comp | Coord arcsec 2000 | 20 10 13.32 +43 56 44.2 |
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Date first | 1843 |
Date last | 2017 |
Obs | 241 |
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Pa first | 327 |
Pa last | 329 |
P.A. Now (θ) | 326.2° |
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Sep first | 0.5 |
Sep last | 0.7 |
Sep. Now (ρ) | 0.65" |
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Mag pri | 7.60 |
Mag sec | 9.83 |
delta mag (ΔM) | 2.23 |
Spectral class | G3V (yellow) |
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Pri motion ra | +009 |
Sec motion ra | +009 |
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Pri motion dec | +089 |
Sec motion dec | +089 |
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Notes |
Precise pa | 328.7 |
Precise sep | 0.695 |
Constellation | Cygnus |
SAO | 49262 |
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HIP | 99376 |
Tycho2 | 3163-01459-1 |
Gaia DR2 | 69591424896 |
HD | 191854 |
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ADS | 13461 |
BD | BD+43 3513 |
Distance | 51.33 |
Distance ly | 167.44 |
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last precise pa | 328.7 |
last precise sep | 0.695 |
Period (P) | 85.61y | Periastron (T) | 1970.27y | Semi-major axis (a) | 0.449a | |||
Eccentricity (e) | 0.488 | Inclination (i) | 116.4° | Longitude of periastron (ω) | 339.4° | |||
Node (Ω) | 142.2° | Note | Grade | 2 | (1=Definitive, 9=Indet.) | |||
Equinox | 2000 | Last observation |
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 |
20102+4357 | STT 400 | 2007 | 230 | 336 | 0.6 | 7.60 | 9.83 | G3V | NOD | 201013.32+435644.2 | |
20102+4357 | STT 400 | 2008 | 234 | 335 | 0.6 | 7.60 | 9.83 | G3V | NOD | 201013.32+435644.2 | |
20102+4357 | STT 400 | 2010 | 235 | 333 | 0.6 | 7.60 | 9.83 | G3V | NOD | 201013.32+435644.2 | |
20102+4357 | STT 400 | 2012 | 235 | 333 | 0.7 | 7.60 | 9.83 | G3V | NOD | 201013.32+435644.2 | |
20102+4357 | STT 400 | 2013 | 237 | 330 | 0.6 | 7.60 | 9.83 | G3V | NO | 201013.32+435644.2 | |
20102+4357 | STT 400 | 2016 | 238 | 329 | 0.7 | 7.60 | 9.83 | G3V | NO | 201013.32+435644.2 | |
20102+4357 | STT 400 | 2017 | 240 | 329 | 0.7 | 7.60 | 9.83 | G3V | NO | 201013.32+435644.2 |