| Coord 2000 | 20135+3828 |
Discov num | ES 2121 |
Comp | AC |
Coord arcsec 2000 | 20 13 32.32 +38 28 23.4 |
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| Date first | 1924 |
Date last | 2015 |
Obs | 4 |
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| Pa first | 234 |
Pa last | 233 |
P.A. Now (θ) | 233° |
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| Sep first | 3.1 |
Sep last | 3.5 |
Sep. Now (ρ) | 3.5" |
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| Mag pri | 11.40 |
Mag sec | 12.80 |
delta mag (ΔM) | 1.4 |
Spectral class | A2 (white) |
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| Pri motion ra | +010 |
Sec motion ra | |||||||||
| Pri motion dec | +002 |
Sec motion dec | |||||||||
| Notes | B
(Blue magnitudes) |
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| Show | name | SAO | coord_2000 | discov# | comp | first | last | obs | pa | sep | mag1 | mag2 | d_mag | orb | current |
| Show | 20135+3828 | TDT2103 | AB | 1991 | 1991 | 1 | 181 | 1.1 | 11.40 | 11.62 | 0.22 | ||||
| Show | 20135+3828 | ES 2121 | AC | 1924 | 2015 | 4 | 233 | 3.5 | 11.40 | 12.80 | 1.40 | <=== |
| Precise pa | 233 |
Precise sep | 3.531 |
Constellation | Cygnus |
SAO | 69638 |
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| Tycho2 | 3151-02624-1 |
Gaia DR2 | 85915482112 |
HD | 228409 |
| coord_2000 | discov_num | comp | epoch | obs | pa | sep | mag_pri | mag_sec | spectr | notes | coord_arcsec_2000 |
| 20135+3828 | ES 2121 | AC | 1924 | 1 | 234 | 3.1 | 12.27 | 12.53 | B | 201332.36+382823.3 | |
| 20135+3828 | ES 2121 | AC | 2002 | 2 | 233 | 3.5 | 11.40 | 12.80 | B | 201332.36+382823.3 | |
| 20135+3828 | ES 2121 | AC | 2011 | 3 | 234 | 3.6 | 11.40 | 12.80 | B | 201332.36+382823.3 | |
| 20135+3828 | ES 2121 | AC | 2015 | 4 | 233 | 3.5 | 11.40 | 12.80 | A2 | B | 201332.32+382823.4 |