Coord 2000 | 20157+7307 | Discov num | UC 4128 | Comp | Coord arcsec 2000 | 20 15 39.84 +73 07 12.6 | |||||
Date first | 2000 | Date last | 2015 | Obs | 9 | ||||||
Pa first | 228 | Pa last | 228.3 | P.A. Now (θ) | 228.3° | ||||||
Sep first | 26.4 | Sep last | 26.16 | Sep. Now (ρ) | 26.16" | ||||||
Mag pri | 10.50 | Mag sec | 14.50 | delta mag (ΔM) | 4 | Spectral class | G0 (yellow) | ||||
Pri motion ra | +026 | Sec motion ra | +016 | ||||||||
Pri motion dec | +057 | Sec motion dec | +050 | ||||||||
Notes | V R (Proper motion indicates physical, Red magnitudes) |
Constellation | Draco | Tycho2 | 4454-00882-1 | Gaia DR2 | 2275922209742307456 |
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 |
20157+7307 | UC 4128 | 2000 | 2 | 228 | 26.4 | 10.50 | 14.50 | V | 201539.84+730712.6 | ||
20157+7307 | UC 4128 | 2003 | 2 | 228 | 26.2 | 10.50 | 14.50 | V | 201539.84+730712.6 | ||
20157+7307 | UC 4128 | 2010 | 3 | 228 | 26.3 | 10.50 | 14.50 | G0 | V R | 201539.84+730712.6 | |
20157+7307 | UC 4128 | 2015 | 4 | 228 | 26.2 | 10.50 | 14.50 | G0 | V R | 201539.84+730712.6 |
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=198.1° sep=18.30" |
Componente originario normalizzato | AB | Coord arcsec 2000 | 201539.84+730712.6 | Mag | 10.5 | Spectral class | G0 (yellow) | ||||
PmRA | 26.00 | PmDE | 57.0 | Tycho2 | 4454-00882-1 |
Tycho2 | 4454-00882-1 | Pflag | RAmdeg | 303.91600221 | DEmdeg | 73.12017647 | |||||
PmRA | 27.0 | PmDE | 57.4 | E RAmdeg | 30 | E DEmdeg | 32 | ||||
E pmRA | 1.9 | E pmDE | 2.0 | EpRAm | 1987.20 | EpDEm | 1987.63 | ||||
Num | 4 | Q RAmdeg | 0.7 | Q DEmdeg | 1.0 | Q pmRA | 0.7 | ||||
Q pmDE | 1.0 | BTmag | 11.369 | E BTmag | 0.065 | VTmag | 10.705 | ||||
E VTmag | 0.056 | Prox | 999 | TYC | T | HIP | |||||
CCDM | RAdeg | 303.91577972 | DEdeg | 73.12005083 | EpRA 1990 | 1.75 | |||||
EpDE 1990 | 1.75 | E RAdeg | 36.3 | E DEdeg | 37.4 | Posflg | |||||
Corr | -0.1 |
Componente originario normalizzato | AB | Coord arcsec 2000 | 201538.54+730655.2 | Mag | 14.5 | PmRA | 16.00 | ||||
PmDE | 50.0 | Calc delta mag | 4 | Calc coord | yes |