Coord 2000 | 03258-1304 | Discov num | HU 21 | Comp | Coord arcsec 2000 | 03 25 49.51 -13 04 03.2 | |||||
Date first | 1900 | Date last | 2016 | Obs | 14 | ||||||
Pa first | 41 | Pa last | 39 | P.A. Now (θ) | 39° | ||||||
Sep first | 1.5 | Sep last | 1.373 | Sep. Now (ρ) | 1.373" | ||||||
Mag pri | 8.73 | Mag sec | 9.89 | delta mag (ΔM) | 1.16 | Spectral class | K1III (yellow-orange) | ||||
Pri motion ra | +003 | Sec motion ra | +003 | ||||||||
Pri motion dec | +001 | Sec motion dec | +001 | ||||||||
Notes |
Name | HD 21304 | Constellation | Eridanus | Tycho2 | 5302-01015-1 | Gaia DR2 | 5161374732042499456 | ||||
HD | 21304 |
refcode | metd | author | reference |
Hu_1896 | not - | Hussey, W.F. | 1896PASP....8..183H |
Hu_1896 | PASP 8, 183, 1896 | ||
Hu_1897 | Ma - | Hussey, W.J. | 1897AJ.....17...97H |
Hu_1897 | AJ 17, 97, 1897 | ||
Hu_1898 | Ma j | Hussey, W.J. | 1898AJ.....18..145H |
Hu_1898 | AJ 18, 145, 1898 | ||
Hu_1899 | Ma j | Hussey, W.J. | 1899AN....150..175H |
Hu_1899 | AN 150, 175, 1899 | ||
Hu_1900a | Ma - | Hussey, W.J. | 1900AJ.....20..192H |
Hu_1900a | AJ 20, 192, 1900 | ||
Hu_1900b | Ma - | Hussey, W.J. | 1900AJ.....21...35H |
Hu_1900b | AJ 21, 35, 1900 | ||
Hu_1900c | Ma j | Hussey, W.J. | 1900AN....152..329H |
Hu_1900c | AN 152, 329, #3645, 1900 | ||
Hu_1901a | Ma j | Hussey, W.J. | 1901PLicO...5.....H |
Hu_1901a | +orb | Pub. Lick Obs. 5, 1901 | |
Hu_1901b | Ma j | Hussey, W.J. | 1901LicOB...1...82H |
Hu_1901b | Lick Obs. Bull. 1, 82, 1901 | ||
Hu_1902a | Ma j | Hussey, W.J. | 1902LicOB...1..161H |
Hu_1902a | Lick Obs. Bull. 1, 161, 1902 | ||
Hu_1902b | Ma j | Hussey, W.J. | 1902LicOB...2....1H |
Hu_1902b | Lick Obs. Bull. 2, 1, 1902 | ||
Hu_1903a | Ma j | Hussey, W.J. | 1903LicOB...2...73H |
Hu_1903a | Lick Obs. Bull. 2, 73, 1903 | ||
Hu_1903b | Ma j | Hussey, W.J. | 1903LicOB...2..115H |
Hu_1903b | Lick Obs. Bull. 2, 115, 1903 | ||
Hu_1904a | Ma j | Hussey, W.J. | 1904LicOB...2..180H |
Hu_1904a | Lick Obs. Bull. 2, 180, 1904 | ||
Hu_1904b | Ma - | Hussey, W.J. | 1904LicOB...3...53H |
Hu_1904b | Lick Obs. Bull. 3, 53, 1904 | ||
Hu_1905a | Ma - | Hussey, W.J. | 1905LicOB...3...95H |
Hu_1905a | Lick Obs. Bull. 3, 95, 1905 | ||
Hu_1905b | Ma - | Hussey, W.J. | 1905LicOB...3..116H |
Hu_1905b | Lick Obs. Bull. 3, 116, 1905 | ||
Hu_1905c | Ma - | Hussey, W.J. | 1905LicOB...3..151H |
Hu_1905c | Lick Obs. Bull. 3, 151, 1905 | ||
Hu_1906A | Ma - | Hussey, W.J. | 1906MmRAS..56....1L |
Hu_1906A | cited by Lewis (MemRAS 56, 1, 1906) | ||
Hu_1906B | Ma - | Hussey, W.J. | 1906QB821.B972..... |
Hu_1906B | cited in BDS (Burnham Double Star Cat.), 1906 | ||
Hu_1907 | Ma - | Hussey, W.J. | 1907LicOB...4..124H |
Hu_1907 | Lick Obs. Bull. 4, 124, 1907 | ||
Hu_1910 | Ma - | Hussey, W.J. | 1910AJ.....21..105H |
Hu_1910 | AJ 21, 105, 1910 | ||
Hu_1911 | Ma - | Hussey, W.J. | 1911LicOB...6..182H |
Hu_1911 | Lick Obs. Bull. 6, 182, 1911 | ||
Hu_1912a | Ma - | Hussey, W.J. | 1915POMic...1..147H |
Hu_1912a | Pub. Univ. Michigan Obs. 1, 147, 1912 | ||
Hu_1912b | Ma - | Hussey, W.J. | 1915POMic...1..160H |
Hu_1912b | Pub. Univ. Michigan Obs. 1, 160, 1912 | ||
Hu_1912c | Ma - | Hussey, W.J. | 1915POMic...1..167H |
Hu_1912c | Pub. Univ. Michigan Obs. 1, 167, 1912 | ||
Hu_1927A | Ma - | Hussey, W.J. | 1927sdsc.book...... |
Hu_1927A | cited in SDS (Southern Double Star Cat.), 1927 | ||
Hu_1932A | Ma - | Hussey, W.J. | 1932QB821.A43...... |
Hu_1932A | cited in ADS (Aitken Double Star Cat.), 1932 | ||
Hu_9999 | Ma - | Hussey, W.J. | ................... |
Hu_9999 | Unpublished, manuscript or reference not found. |
coord_2000 | discov_num | comp | epoch | obs | pa | sep | mag_pri | mag_sec | spectr | notes | coord_arcsec_2000 |
03258-1304 | HU 21 | 1999 | 12 | 37 | 1.4 | 8.73 | 9.89 | K1III | 032549.51-130403.2 | ||
03258-1304 | HU 21 | 2015 | 13 | 39 | 1.4 | 8.73 | 9.89 | K1III | 032549.51-130403.2 | ||
03258-1304 | HU 21 | 2016 | 14 | 39 | 1.4 | 8.73 | 9.89 | K1III | 032549.51-130403.2 | ||
03258-1304 | HU 21 | 2017 | 14 | 38 | 1.5 | 8.73 | 9.89 | K1III | 032549.51-130403.2 |
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=38.3° sep=1.36" |
Componente originario normalizzato | AB | Name | HD 21304 | Coord arcsec 2000 | 032549.51-130403.2 | Mag | 8.73 | ||||
Spectral class | K1III (yellow-orange) | PmRA | 3.00 | PmDE | 1.0 | Tycho2 | 5302-01015-1 | ||||
HD | 21304 |
Tycho2 | 5302-01015-1 | Pflag | P | RAmdeg | 51.45627792 | DEmdeg | -13.06755698 | ||||
PmRA | 2.9 | PmDE | 1.3 | E RAmdeg | 10 | E DEmdeg | 13 | ||||
E pmRA | 2.1 | E pmDE | 2.0 | EpRAm | 1991.50 | EpDEm | 1991.07 | ||||
Num | 3 | Q RAmdeg | 1.2 | Q DEmdeg | 0.2 | Q pmRA | 1.1 | ||||
Q pmDE | 0.2 | BTmag | 10.105 | E BTmag | 0.031 | VTmag | 8.728 | ||||
E VTmag | 0.016 | Prox | 14 | TYC | T | HIP | |||||
CCDM | RAdeg | 51.45620222 | DEdeg | -13.06763861 | EpRA 1990 | 1.76 | |||||
EpDE 1990 | 1.54 | E RAdeg | 9.9 | E DEdeg | 12.9 | Posflg | D | ||||
Corr | 0.1 |
Ccdm | 03258-1304 | RComp | Comp | A | Note1 | ||||||
Note2 | Discov num | DRAs | 1.45 | DDEs | -2.5 | ||||||
R dRAs | 66 | Year | Theta | Rho | |||||||
Obs | 2 | Vmag | 9.2 | Sp | K0 | PmNote | |||||
PmRA | -32 | PmDE | 2 | Dm number | -13 645 | Cat1 | BD | ||||
Name2 | Cat2 | HD | 21304 | M HD | |||||||
ADS BDS | A 2532 | M ADS BDS | N IDS | IDS | 03211S1325A | ||||||
HIC |
Componente originario normalizzato | AB | Coord arcsec 2000 | 032549.57-130402.1 | Mag | 9.89 | PmRA | 3.00 | ||||
PmDE | 1.0 | Tycho2 | 5302-01015-2 | Calc delta mag | 1.16 | Calc coord | yes |
Tycho2 | 5302-01015-2 | Pflag | P | RAmdeg | 51.45627792 | DEmdeg | -13.06755698 | ||||
PmRA | 2.9 | PmDE | 1.3 | E RAmdeg | 10 | E DEmdeg | 13 | ||||
E pmRA | 2.1 | E pmDE | 2.0 | EpRAm | 1991.50 | EpDEm | 1991.07 | ||||
Num | 3 | Q RAmdeg | 1.2 | Q DEmdeg | 0.2 | Q pmRA | 1.1 | ||||
Q pmDE | 0.2 | BTmag | 10.783 | E BTmag | 0.052 | VTmag | 9.890 | ||||
E VTmag | 0.035 | Prox | 14 | TYC | HIP | ||||||
CCDM | RAdeg | 51.45645833 | DEdeg | -13.06734833 | EpRA 1990 | 1.77 | |||||
EpDE 1990 | 1.52 | E RAdeg | 21.8 | E DEdeg | 29.3 | Posflg | D | ||||
Corr | 0.1 |
Ccdm | 03258-1304 | RComp | Comp | B | Note1 | ||||||
Note2 | Discov num | HU 21 | DRAs | DDEs | |||||||
R dRAs | Year | 1900 | Theta | 041 | Rho | 1.4 | |||||
Obs | 7 | Vmag | 10.0 | Sp | PmNote | ||||||
PmRA | PmDE | Dm number | Cat1 | ||||||||
Name2 | Cat2 | HD | M HD | ||||||||
ADS BDS | A 2532 | M ADS BDS | N IDS | IDS | 03211S1325B | ||||||
HIC |