Coord 2000 | 20154+6412 |
Discov num | MLR 60 |
Comp | AB |
Coord arcsec 2000 | 20 15 21.50 +64 11 55.6 |
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Date first | 1970 |
Date last | 2008 |
Obs | 24 |
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Pa first | 20 |
Pa last | 173 |
P.A. Now (θ) | 21.2° |
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Sep first | 0.2 |
Sep last | 0.2 |
Sep. Now (ρ) | 0.14" |
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Mag pri | 8.46 |
Mag sec | 8.50 |
delta mag (ΔM) | 0.04 |
Spectral class | G5 (yellow) |
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Pri motion ra | +178 |
Sec motion ra | |||||||||
Pri motion dec | +232 |
Sec motion dec | |||||||||
Notes |
Show | name | SAO | coord | wds_name | last | obs | pa | sep | mag1 | mag2 | d_mag | orb | current |
Show | 18780 | 20 15 22 +64 11 56 | MLR 60 AB | 2008 | 24 | 21 | 0.1 | 8.46 | 8.50 | 0.04 | Y | <=== | |
Show | 18780 | 20 15 22 +64 11 56 | LDS 5245 AC | 1960 | 1 | 122 | 20.0 | 8.46 | 17.03 | 8.57 | |||
Show | 18780 | 20 15 22 +64 11 56 | SHY 772 AD | 1999 | 3 | 246 | 999.9 | 8.46 | 10.12 | 1.66 |
Precise pa | 173.2 |
Precise sep | 0.249 |
Constellation | Draco |
SAO | 18780 |
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HIP | 99832 |
Tycho2 | 4240-00516-1 |
Gaia DR2 | 2244572934213430272 |
HD | 193215 |
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BD | BD+63 1608 |
Distance | 68.97 |
Distance ly | 224.98 |
last precise pa | 173.2 |
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last precise sep | 0.249 |
Period (P) | 50y | Periastron (T) | 1963.9y | Semi-major axis (a) | 0.239a | |||
Eccentricity (e) | 0.035 | Inclination (i) | 107.5° | Longitude of periastron (ω) | 68.2° | |||
Node (Ω) | 176° | Note | Grade | 3 | (1=Definitive, 9=Indet.) | |||
Equinox | 2000 | Last observation | 2008 |
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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 |
20154+6412 | MLR 60 | AB | 1997 | 21 | 349 | 0.2 | 8.46 | 8.50 | G5 | O | 201521.50+641153.5 |
20154+6412 | MLR 60 | AB | 2007 | 22 | 349 | 0.2 | 8.46 | 8.50 | G5 | O | 201521.50+641153.5 |
20154+6412 | MLR 60 | AB | 2008 | 24 | 173 | 0.2 | 8.46 | 8.50 | G5 | NOD | 201521.50+641153.5 |