| Coord 2000 | 20179+3845 |
Discov num | SLE 990 |
Comp | Coord arcsec 2000 | 20 17 56.28 +38 44 28.8 |
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| Date first | 1985 |
Date last | 2015 |
Obs | 8 |
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| Pa first | 278 |
Pa last | 274 |
P.A. Now (θ) | 274° |
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| Sep first | 8.2 |
Sep last | 8.9 |
Sep. Now (ρ) | 8.9" |
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| Mag pri | 11.70 |
Mag sec | 13.30 |
delta mag (ΔM) | 1.6 |
Spectral class | |||||
| Pri motion ra | +001 |
Sec motion ra | -022 |
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| Pri motion dec | -003 |
Sec motion dec | -014 |
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| Notes | R
(Red magnitudes) |
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| Precise pa | 273.5 |
Precise sep | 8.944 |
Constellation | Cygnus |
SAO | 69789 |
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| Gaia DR2 | 2061347052408240768 |
| coord_2000 | discov_num | comp | epoch | obs | pa | sep | mag_pri | mag_sec | spectr | notes | coord_arcsec_2000 |
| 20179+3845 | SLE 990 | 1998 | 2 | 275 | 8.6 | 11.90 | 12.30 | D | 201756.19+384438.8 | ||
| 20179+3845 | SLE 990 | 2002 | 3 | 275 | 8.7 | 11.70 | 13.30 | R | 201756.28+384428.8 | ||
| 20179+3845 | SLE 990 | 2010 | 4 | 269 | 7.8 | 11.70 | 13.30 | R | 201756.28+384428.8 | ||
| 20179+3845 | SLE 990 | 2015 | 4 | 274 | 8.9 | 11.70 | 13.30 | R | 201756.28+384428.8 |