Coord 2000 | 21077+3022 | Discov num | UC 256 | Comp | Coord arcsec 2000 | 21 07 40.74 +30 22 11.7 | |||||
Date first | 1894 | Date last | 2015 | Obs | 15 | ||||||
Pa first | 68 | Pa last | 67.2 | P.A. Now (θ) | 67.2° | ||||||
Sep first | 46.7 | Sep last | 48.068 | Sep. Now (ρ) | 48.068" | ||||||
Mag pri | 8.79 | Mag sec | 11.10 | delta mag (ΔM) | 2.31 | Spectral class | G0V (yellow) | ||||
Pri motion ra | -006 | Sec motion ra | -010 | ||||||||
Pri motion dec | -070 | Sec motion dec | -064 | ||||||||
Notes | V (Proper motion indicates physical) |
Constellation | Cygnus | Tycho2 | 2701-00565-1 | Gaia DR2 | 1852375899638220928 |
refcode | metd | author | reference |
UC | USNO CCD Astrographic Catalog (UCAC1, UCAC2, UCAC3, UCAC4) | ................... | |
UC_2013a | Eu j | Zacharias, N., Finch, C.T., Girard, T.M., Henden, A., Bartlett, J.L., Monet, D.G., | 2013AJ....145...44Z |
UC_2013a | & Zacharias, M.I. (UCAC4 Catalog) | ||
UC_2013a | AJ 145, 44, 2013 | ||
UC_2013b | Eu j | Hartkopf, W.I., Mason, B.D., Finch, C.T., Zacharias, N., Wycoff, G.L., & Hsu, D. | 2013AJ....146...76H |
UC_2013b | AJ 146, 76, 2013 (UC 301 - 5058) | ||
UC_2013b | (Relative astrometry is derived from individual measurements, not precessed means. | ||
UC_2013b | UCAC aperture magnitudes are listed, unless the duplicity flag indicates a blended | ||
UC_2013b | image (a flag value of 30 or higher). Model fit magnitudes are given for both | ||
UC_2013b | components if either has such a flag. Model fit magnitudes are indicated by the | ||
UC_2013b | letter "f" following the filter information. | ||
UC_2013b | APASS photometry extracted from UCAC4 catalog is listed under reference AAV2012. | ||
UC_2013b | Due to aperture method used, APASS photometry is only included for pairs wider | ||
UC_2013b | than 10" (Henden, private comm.) Photometry for pairs wider than 10" which showed | ||
UC_2013b | identical values for both components in all filters were removed, as well. | ||
UC_2015 | Eu - | Zacharias, N., Finch, C.T., Subasavage, J.P., Bredthauer, G., Crockett, C., | 2015AJ....150..101Z |
UC_2015 | DiVittorio, M., Ferguson, E., Harris, F., Harris, H.C., Hendon, A., Kilian, C., | ||
UC_2015 | Munn, J., Rafferty, T., Rhodes, A., Schultheis, M., Tilleman, T., & Wieder, G. | ||
UC_2015 | AJ 150, 101, 2015 | ||
UC_9999 | Eu - | temporary UCAC files | ................... |
coord_2000 | discov_num | comp | epoch | obs | pa | sep | mag_pri | mag_sec | spectr | notes | coord_arcsec_2000 |
21077+3022 | UC 256 | 1999 | 1 | 67 | 48.1 | 8.79 | 11.10 | V | 210740.74+302211.7 | ||
21077+3022 | UC 256 | 2011 | 8 | 67 | 48.0 | 8.79 | 11.10 | VD | 210740.74+302211.7 | ||
21077+3022 | UC 256 | 2015 | 10 | 67 | 48.2 | 8.79 | 11.10 | G0V | V | 210740.74+302211.7 |
Click on the map to see the double of your interest. Pass over with the mouse cursor to display the catalog designation. |
Click on the map to see the double of your interest. Pass over with the mouse cursor to display the catalog designation. |
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A | |
B | pa=64.0° sep=42.53" |
Componente originario normalizzato | AB | Coord arcsec 2000 | 210740.74+302211.7 | Mag | 8.79 | Spectral class | G0V (yellow) | ||||
PmRA | -6.00 | PmDE | -70.0 | Tycho2 | 2701-00565-1 |
Tycho2 | 2701-00565-1 | Pflag | RAmdeg | 316.91974311 | DEmdeg | 30.36991049 | |||||
PmRA | -8.5 | PmDE | -69.3 | E RAmdeg | 8 | E DEmdeg | 7 | ||||
E pmRA | 1.3 | E pmDE | 1.2 | EpRAm | 1990.68 | EpDEm | 1990.98 | ||||
Num | 10 | Q RAmdeg | 1.2 | Q DEmdeg | 0.9 | Q pmRA | 1.2 | ||||
Q pmDE | 0.8 | BTmag | 9.430 | E BTmag | 0.017 | VTmag | 8.787 | ||||
E VTmag | 0.013 | Prox | 480 | TYC | T | HIP | |||||
CCDM | RAdeg | 316.91976694 | DEdeg | 30.37007139 | EpRA 1990 | 1.45 | |||||
EpDE 1990 | 1.66 | E RAdeg | 7.6 | E DEdeg | 6.7 | Posflg | |||||
Corr | 0.0 |
Componente originario normalizzato | AB | Coord arcsec 2000 | 210743.69+302230.3 | Mag | 11.1 | PmRA | -10.00 | ||||
PmDE | -64.0 | Tycho2 | 2701-00841-1 | Calc delta mag | 2.31 | Calc coord | yes |
Tycho2 | 2701-00841-1 | Pflag | RAmdeg | 316.93404489 | DEmdeg | 30.37504359 | |||||
PmRA | -4.1 | PmDE | -68.1 | E RAmdeg | 50 | E DEmdeg | 44 | ||||
E pmRA | 2.0 | E pmDE | 2.0 | EpRAm | 1983.35 | EpDEm | 1985.16 | ||||
Num | 5 | Q RAmdeg | 1.2 | Q DEmdeg | 1.1 | Q pmRA | 1.2 | ||||
Q pmDE | 1.1 | BTmag | 12.449 | E BTmag | 0.168 | VTmag | 11.102 | ||||
E VTmag | 0.065 | Prox | 480 | TYC | HIP | ||||||
CCDM | RAdeg | 316.93404611 | DEdeg | 30.37520111 | EpRA 1990 | 1.45 | |||||
EpDE 1990 | 1.66 | E RAdeg | 55.5 | E DEdeg | 47.9 | Posflg | |||||
Corr | 0.1 |