Coord 2000 | 07346+3153 |
Discov num | STF1110 |
Comp | AB |
Coord arcsec 2000 | 07 34 35.86 +31 53 17.8 |
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Date first | 1778 |
Date last | 2020 |
Obs | 1431 |
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Pa first | 303 |
Pa last | 53 |
P.A. Now (θ) | 51.6° |
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Sep first | 5.2 |
Sep last | 5.4 |
Sep. Now (ρ) | 5.44" |
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Mag pri | 1.93 |
Mag sec | 2.97 |
delta mag (ΔM) | 1.04 |
Spectral class | A1V+A4Vm (white/white) |
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Pri motion ra | -206 |
Sec motion ra | -206 |
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Pri motion dec | -148 |
Sec motion dec | -148 |
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Notes |
Show | name | SAO | coord | wds_name | last | obs | pa | sep | mag1 | mag2 | d_mag | orb | current |
Show | Castore | 60198 | 07 34 36 +31 53 18 | STF 1110 AB | 2020 | 1431 | 52 | 5.4 | 1.93 | 2.97 | 1.04 | Y | <=== |
Show | 60198 | 07 34 36 +31 53 18 | STF 1110 AC | 2020 | 156 | 164 | 71.6 | 1.93 | 9.83 | 7.90 | |||
Show | 60198 | 07 34 36 +31 53 18 | STF 1110 AD | 2017 | 17 | 221 | 179.8 | 1.93 | 10.07 | 8.14 | |||
Show | 60198 | 07 34 36 +31 53 18 | STF 1110 BC | 2020 | 125 | 168 | 73.8 | 2.97 | 9.83 | 6.86 | |||
Show | 60198 | 07 34 37 +31 52 10 | STF 1110 CD | 2015 | 6 | 244 | 154.9 | 9.83 | 10.07 | 0.24 | Y |
Precise pa | 52.6 |
Precise sep | 5.38 |
Common name | Castore |
Meaning | beaver (Castor) |
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Other names | CASTOR, APOLLO |
Constellation | Gemini |
SAO | 60198 |
HIP | 36850 |
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Tycho2 | 2457-02407-1 |
Gaia DR2 | 892348694913021056 |
HD | 60179 |
HR | 2891 |
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ADS | 6175 |
GL | Gl 278A |
BD | BD+32 1581 |
Bayer | Alpha Geminorum |
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Bayer name | Alp Gem |
Flamsteed | 66 Geminorum |
Flamsteed name | 66 Gem |
Distance | 15.6 |
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Distance ly | 50.89 |
last precise pa | 52.6 |
last precise sep | 5.38 |
Period (P) | 459.8y | Periastron (T) | 1958.7y | Semi-major axis (a) | 6.755a | |||
Eccentricity (e) | 0.336 | Inclination (i) | 114.6° | Longitude of periastron (ω) | 250.5° | |||
Node (Ω) | 41.2° | Note | Grade | 3 | (1=Definitive, 9=Indet.) | |||
Equinox | 2000 | Last observation | 2014 |
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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 |
07346+3153 | STF1110 | AB | 2007 | 1341 | 60 | 4.6 | 1.93 | 2.97 | A1V A2Vm | NOD | 073436.00+315319.1 |
07346+3153 | STF1110 | AB | 2008 | 1345 | 59 | 4.6 | 1.93 | 2.97 | A1V A2Vm | NOD | 073436.00+315319.1 |
07346+3153 | STF1110 | AB | 2009 | 1355 | 58 | 4.6 | 1.93 | 2.97 | A1V A2Vm | NOD | 073436.00+315319.1 |
07346+3153 | STF1110 | AB | 2010 | 1373 | 58 | 4.7 | 1.93 | 2.97 | A1V A2Vm | NOD | 073436.00+315319.1 |
07346+3153 | STF1110 | AB | 2011 | 1390 | 58 | 4.8 | 1.93 | 2.97 | A1V A2Vm | NOD | 073436.00+315319.1 |
07346+3153 | STF1110 | AB | 2012 | 1393 | 56 | 4.8 | 1.93 | 2.97 | A1V A2Vm | NOD | 073436.00+315319.1 |
07346+3153 | STF1110 | AB | 2014 | 1412 | 55 | 4.6 | 1.93 | 2.97 | A1V A2Vm | NOD | 073436.00+315319.1 |
07346+3153 | STF1110 | AB | 2015 | 1401 | 55 | 5.2 | 1.93 | 2.97 | A1V+A4Vm | NO | 073436.00+315319.1 |
07346+3153 | STF1110 | AB | 2016 | 1410 | 54 | 5.0 | 1.93 | 2.97 | A1V+A4Vm | NO | 073435.86+315317.8 |
07346+3153 | STF1110 | AB | 2017 | 1413 | 54 | 5.2 | 1.93 | 2.97 | A1V+A4Vm | NO | 073435.86+315317.8 |
07346+3153 | STF1110 | AB | 2018 | 1421 | 53 | 5.4 | 1.93 | 2.97 | A1V+A4Vm | NO | 073435.86+315317.8 |
07346+3153 | STF1110 | AB | 2019 | 1422 | 53 | 5.4 | 1.93 | 2.97 | A1V+A4Vm | NO | 073435.86+315317.8 |