| Coord 2000 | 20173+5201 |
Discov num | ES 660 |
Comp | AB |
Coord arcsec 2000 | 20 17 15.58 +52 00 37.2 |
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| Date first | 1897 |
Date last | 2018 |
Obs | 17 |
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| Pa first | 305 |
Pa last | 305 |
P.A. Now (θ) | 305° |
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| Sep first | 29.8 |
Sep last | 30.1 |
Sep. Now (ρ) | 30.1" |
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| Mag pri | 10.19 |
Mag sec | 10.26 |
delta mag (ΔM) | 0.07 |
Spectral class | A0 (white) |
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| Pri motion ra | -001 |
Sec motion ra | -002 |
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| Pri motion dec | +000 |
Sec motion dec | +000 |
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| Notes | |||||||||||
| Show | name | SAO | coord | wds_name | last | obs | pa | sep | mag1 | mag2 | d_mag | orb | current |
| Show | 20 17 16 +52 00 37 | ES 660 AB | 2018 | 17 | 305 | 30.1 | 10.19 | 10.26 | 0.07 | <=== | |||
| Show | 20 17 13 +52 00 54 | ES 660 BC | 2018 | 17 | 291 | 9.5 | 10.26 | 10.33 | 0.07 |
| Precise pa | 305.3 |
Precise sep | 30.06 |
Constellation | Cygnus |
Tycho2 | 3584-00583-1 |
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| Gaia DR2 | 2184327629815065472 |
HD | 235163 |
| coord_2000 | discov_num | comp | epoch | obs | pa | sep | mag_pri | mag_sec | spectr | notes | coord_arcsec_2000 |
| 20173+5201 | ES 660 | AB | 2005 | 9 | 305 | 29.6 | 10.19 | 10.26 | A0 | D | 201715.58+520037.2 |
| 20173+5201 | ES 660 | AB | 2012 | 11 | 305 | 29.6 | 10.19 | 10.26 | A0 | D | 201715.58+520037.2 |
| 20173+5201 | ES 660 | AB | 2015 | 12 | 305 | 30.1 | 10.19 | 10.26 | A0 | 201715.58+520037.2 | |
| 20173+5201 | ES 660 | AB | 2018 | 13 | 305 | 30.1 | 10.19 | 10.26 | A0 | 201715.58+520037.2 |