Coord 2000 | 18472+1655 | Discov num | ARN 75 | Comp | Coord arcsec 2000 | 18 47 19.94 +16 54 30.6 | |||||
Date first | 1899 | Date last | 2010 | Obs | 10 | ||||||
Pa first | 27 | Pa last | 26 | P.A. Now (θ) | 26° | ||||||
Sep first | 60.9 | Sep last | 65.3 | Sep. Now (ρ) | 65.3" | ||||||
Mag pri | 6.81 | Mag sec | 8.59 | delta mag (ΔM) | 1.78 | Spectral class | B8 (blue-white) | ||||
Pri motion ra | -002 | Sec motion ra | -002 | ||||||||
Pri motion dec | -008 | Sec motion dec | -007 | ||||||||
Notes | U (Proper motion indicates non-physical) |
Name | HD 173921 | Constellation | Hercules | SAO | 104098 | HIP | 92191 | ||||
Tycho2 | 1587-00276-1 | Gaia DR2 | 4511281094790764800 | HD | 173921 | GC | 25743 | ||||
BD | BD+16 3613 | Distance | 315.46 | Distance ly | 1029.03 |
refcode | metd | author | reference |
Arn2001 | Mg j | Arnold, D. | 2001DSO.....7....4A |
Arn2001 | Double Star Observer 7, #4, 2001 | ||
Arn2002a | Mg j | Arnold, D. | 2002DSO.....8....1A |
Arn2002a | Double Star Observer 8, #1, 2002 | ||
Arn2002b | Mg - | Arnold, D. | 2002DSO.....8....3A |
Arn2002b | Double Star Observer 8, #3, 2002 | ||
Arn2002c | Mg j | Arnold, D. | 2002DSO.....8....4A |
Arn2002c | Double Star Observer 8, #4, 2002 | ||
Arn2002d | Mg j | Arnold, D. | 2002DSO.....8....5A |
Arn2002d | Double Star Observer 8, #5, 2002 | ||
Arn2003a | Mg j | Arnold, D. | 2003DSO.....9....1A |
Arn2003a | Double Star Observer 9, #1, 2003 | ||
Arn2003b | Mg j | Arnold, D. | 2003DSO.....9....3A |
Arn2003b | Double Star Observer 9, #3, 2003 | ||
Arn2003c | Mg j | Arnold, D. | 2003DSO.....9....4A |
Arn2003c | Double Star Observer 9, #4, 2003 | ||
Arn2003d | Mg j | Arnold, D. | 2003DSO.....9....5A |
Arn2003d | Double Star Observer 9, #5, 2003 | ||
Arn2003e | Mg j | Arnold, D. | 2003DSO.....9....6A |
Arn2003e | Double Star Observer 9, #6, 2003 | ||
Arn2004a | Mg j | Arnold, D. | 2004DSO....10....1A |
Arn2004a | Double Star Observer 10, #1, 2004 | ||
Arn2004b | Mg j | Arnold, D. | 2004DSO....10....2A |
Arn2004b | Double Star Observer 10, #2, 2004 | ||
Arn2004c | Mg j | Arnold, D. | 2004DSO....10....3A |
Arn2004c | Double Star Observer 10, #3, 2004 | ||
Arn2004d | Mg j | Arnold, D. | 2004DSO....10....4A |
Arn2004d | Double Star Observer 10, #4, 2004 | ||
Arn2004e | Mg j | Arnold, D. | 2004DSO....10....5A |
Arn2004e | Double Star Observer 10, #5, 2004 | ||
Arn2004f | Mg j | Arnold, D. | 2004DSO....10....6A |
Arn2004f | Double Star Observer 10, #6, 2004 | ||
Arn2005a | Mg j | Arnold, D. | 2005DSO....11....1A |
Arn2005a | Double Star Observer 11, #1, 2005 | ||
Arn2005b | Mg j | Arnold, D. | 2005DSO....11....2A |
Arn2005b | Double Star Observer 11, #2, 2005 | ||
Arn2005c | Mg j | Arnold, D. | 2005DSO....11....3A |
Arn2005c | Double Star Observer 11, #3, 2005 | ||
Arn2005d | Mg j | Arnold, D. | 2005DSO....11....4A |
Arn2005d | Double Star Observer 11, #4, 2005 | ||
Arn2005e | Mg j | Arnold, D. | 2005DSO....11....5A |
Arn2005e | Double Star Observer 11, #5, 2005 | ||
Arn2005f | Mg j | Arnold, D. | 2005DSO....11....6A |
Arn2005f | Double Star Observer 11, #6, 2005 | ||
Arn2006a | Mg j | Arnold, D. | 2006JDSO....2....6A |
Arn2006a | +C | JDSO 2, 6, 2006 | |
Arn2006b | Mg j | Arnold, D. | 2006JDSO....2...13A |
Arn2006b | JDSO 2, 13, 2006 | ||
Arn2006c | Mg j | Arnold, D. | 2006JDSO....2...54A |
Arn2006c | JDSO 2, 54, 2006 | ||
Arn2006d | Mg j | Arnold, D. | 2006JDSO....2...61A |
Arn2006d | JDSO 2, 61, 2006 | ||
Arn2006e | Mg j | Arnold, D. | 2006JDSO....2...79A |
Arn2006e | JDSO 2, 79, 2006 | ||
Arn2006f | Mg j | Arnold, D. | 2006JDSO....2...87A |
Arn2006f | JDSO 2, 87, 2006 | ||
Arn2006g | Mg j | Arnold, D. | 2006JDSO....2..163A |
Arn2006g | +C | JDSO 2, 163, 2006 | |
Arn2007a | Mg j | Arnold, D. | 2007JDSO....3...27A |
Arn2007a | JDSO 3, 27, 2007 | ||
Arn2007b | Mg j | Arnold, D. | 2007JDSO....3...55A |
Arn2007b | JDSO 3, 55, 2007 | ||
Arn2007c | Mg j | Arnold, D. | 2007JDSO....3..119A |
Arn2007c | JDSO 3, 119, 2007 | ||
Arn2007d | Mg j | Arnold, D. | 2007JDSO....3..139A |
Arn2007d | JDSO 3, 139, 2007 | ||
Arn2008a | Mg j | Arnold, D. | 2008JDSO....4....2A |
Arn2008a | JDSO 4, 2, 2008 | ||
Arn2008b | Mg j | Arnold, D. | 2008JDSO....4...66A |
Arn2008b | JDSO 4, 66, 2008 | ||
Arn2008c | Mg j | Arnold, D. | 2008JDSO....4...91A |
Arn2008c | JDSO 4, 91, 2008 | ||
Arn2008d | Mg j | Arnold, D. | 2008JDSO....4..136A |
Arn2008d | JDSO 4, 136, 2008 | ||
Arn2009a | Mg j | Arnold, D. | 2009JDSO....5....2A |
Arn2009a | JDSO 5, 2, 2009 | ||
Arn2009b | Mg j | Arnold, D. | 2009JDSO....5...94A |
Arn2009b | JDSO 5, 94, 2009 | ||
Arn2009c | Mg j | Arnold, D. | 2009JDSO....5..129A |
Arn2009c | JDSO 5, 129, 2009 | ||
Arn2009d | Mg j | Arnold, D. | 2009JDSO....5..182A |
Arn2009d | JDSO 5, 182, 2009 | ||
Arn2010a | Mg j | Arnold, D. | 2010JDSO....6....5A |
Arn2010a | JDSO 6, 5, 2010 | ||
Arn2010b | Mg j | Arnold, D. | 2010JDSO....6..141A |
Arn2010b | JDSO 6, 141, 2010 | ||
Arn2010c | Mg j | Arnold, D. | 2010JDSO....6..170A |
Arn2010c | JDSO 6, 170, 2010 | ||
Arn2010d | Mg j | Arnold, D. | 2010JDSO....6..301A |
Arn2010d | JDSO 6, 301, 2010 | ||
Arn2012a | Mg j | Arnold, D. | 2012JDSO....8...32A |
Arn2012a | JDSO 8, 32, 2012 | ||
Arn2012b | Mg - | Arnold, D. | 2012JDSO....8..176A |
Arn2012b | JDSO 8, 176, 2012 | ||
Arn2012c | Mg j | Arnold, D. | 2012JDSO....8..226A |
Arn2012c | JDSO 8, 226, 2012 | ||
Arn2013a | Mg j | Arnold, D. | 2013JDSO....9...10A |
Arn2013a | JDSO 9, 10, 2013 | ||
Arn2013b | M j | Arnold, D. | 2013JDSO....9..100A |
Arn2013b | JDSO 9, 100, 2013 |
coord_2000 | discov_num | comp | epoch | obs | pa | sep | mag_pri | mag_sec | spectr | notes | coord_arcsec_2000 |
18472+1655 | ARN 75 | 2004 | 1 | 27 | 60.2 | 6.80 | 8.60 | ||||
18472+1655 | ARN 75 | 2010 | 9 | 26 | 65.3 | 6.81 | 8.59 | UD | 184719.94+165430.6 |
Show | date | username | difficulty | sep | sep_sigma | pa | pa_sigma | delta_mag | # | notes |
Show | 12/07/25 | Robert | 62.00 | 0.00 | 25.00 | 0.00 | 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=25.0° sep=64.77" |
Componente originario normalizzato | AB | Name | HD 173921 | Coord arcsec 2000 | 184719.94+165430.6 | Mag | 6.81 | ||||
Spectral class | B8 (blue-white) | PmRA | -2.00 | PmDE | -8.0 | SAO | 104098 | ||||
HIP | 92191 | Tycho2 | 1587-00276-1 | HD | 173921 | GC | 25743 | ||||
BD | BD+16 3613 |
Tycho2 | 1587-00276-1 | Pflag | RAmdeg | 281.83308916 | DEmdeg | 16.90851430 | |||||
PmRA | -2.6 | PmDE | -7.7 | E RAmdeg | 4 | E DEmdeg | 4 | ||||
E pmRA | 1.1 | E pmDE | 1.2 | EpRAm | 1991.66 | EpDEm | 1991.65 | ||||
Num | 14 | Q RAmdeg | 0.8 | Q DEmdeg | 1.0 | Q pmRA | 0.7 | ||||
Q pmDE | 0.9 | BTmag | 6.922 | E BTmag | 0.015 | VTmag | 6.808 | ||||
E VTmag | 0.010 | Prox | 607 | TYC | T | HIP | 92191 | ||||
CCDM | RAdeg | 281.83309556 | DEdeg | 16.90853167 | EpRA 1990 | 1.90 | |||||
EpDE 1990 | 1.85 | E RAdeg | 3.6 | E DEdeg | 3.9 | Posflg | |||||
Corr | 0.4 |
SAO | 104098 | DelFlag | RA1950 | PmRA1950 | 0.0015 | ||||||
DE1950 | PmDE1950 | -0.004 | Vmag | 6.7 | SpType | B8 | |||||
Double code | Source | 70 | CatNum | 25743 | DM | BD+16 3613 | |||||
DMcomp | BDsup | HD | 173921 | M HD | 0 | ||||||
GC | 25743 | RA1950rad | 4.90918462 | DE1950rad | 0.2941387 | PmRA2000 | 0.0016 | ||||
PmDE2000 | -0.004 |
Catalog | H | HIP | 92191 | Proxy | RAhms | 18 47 19.94 | |||||
DEdms | +16 54 30.7 | Vmag | 6.8 | VarFlag | R Vmag | H | |||||
RAdeg | 281.833 | DEdeg | 16.9085 | AstroRef | Plx | 2.54 | |||||
CCDM | N CCDM | Nsys | Ncomp | 1 | |||||||
MultFlag | Source | Qual | M HIP | ||||||||
Theta | Rho | HD | 173921 | BD | BD+16 3613 | ||||||
CD | CP | Dm number | +16 3613 | VIred | 0.11 | ||||||
SpType | B8 | R SpType | Coord arcsec 2000 | 184719.94+165430.7 |
HIP | 92191 | Sn | 5 | So | 0 | Nc | 1 | ||||
RArad | 4.9189154507 | DErad | 0.2951096094 | Plx | 3.17 | PmRA | -2.28 | ||||
PmDE | -7.96 | E RArad | 0.46 | E DErad | 0.41 | E Plx | 0.6 | ||||
E pmRA | 0.51 | E pmDE | 0.5 | Hpmag | 6.8447 | E Hpmag | 0.0011 | ||||
SHp | 0.009 | VA | 0 | BV | 0.121 | E BV | 0.006 | ||||
VI | 0.14 |
Componente originario normalizzato | AB | Coord arcsec 2000 | 184721.85+165529.3 | Mag | 8.59 | PmRA | -2.00 | ||||
PmDE | -7.0 | SAO | 104099 | Tycho2 | 1587-00468-1 | HD | 229504 | ||||
DM | BD+16 3614 | Calc delta mag | 1.78 | Calc coord | yes |
Tycho2 | 1587-00468-1 | Pflag | RAmdeg | 281.84082540 | DEmdeg | 16.92367157 | |||||
PmRA | -1.7 | PmDE | -6.0 | E RAmdeg | 5 | E DEmdeg | 7 | ||||
E pmRA | 1.3 | E pmDE | 1.2 | EpRAm | 1991.63 | EpDEm | 1991.31 | ||||
Num | 8 | Q RAmdeg | 0.8 | Q DEmdeg | 1.1 | Q pmRA | 0.8 | ||||
Q pmDE | 1.2 | BTmag | 8.709 | E BTmag | 0.017 | VTmag | 8.587 | ||||
E VTmag | 0.013 | Prox | 607 | TYC | T | HIP | |||||
CCDM | RAdeg | 281.84082944 | DEdeg | 16.92368528 | EpRA 1990 | 1.93 | |||||
EpDE 1990 | 1.92 | E RAdeg | 5.4 | E DEdeg | 7.4 | Posflg | |||||
Corr | 0.5 |
SAO | 104099 | DelFlag | RA1950 | PmRA1950 | -0.0006 | ||||||
DE1950 | PmDE1950 | -0.011 | Vmag | 8.2 | SpType | A0 | |||||
Double code | Source | 28 | CatNum | 7012 | DM | BD+16 3614 | |||||
DMcomp | BDsup | HD | 229504 | M HD | 0 | ||||||
GC | RA1950rad | 4.9093115 | DE1950rad | 0.29439972 | PmRA2000 | -0.0005 | |||||
PmDE2000 | -0.011 |