Coord 2000 | 01234+5809 | Discov num | STF 115 | Comp | AB | Coord arcsec 2000 | 01 23 21.27 +58 08 35.6 | ||||
Date first | 1831 | Date last | 2020 | Obs | 106 | ||||||
Pa first | 158 | Pa last | 155.7 | P.A. Now (θ) | 155.4° | ||||||
Sep first | 0.7 | Sep last | 0.48 | Sep. Now (ρ) | 0.5" | ||||||
Mag pri | 7.10 | Mag sec | 7.30 | delta mag (ΔM) | 0.2 | Spectral class | F5V (yellow-white) | ||||
Pri motion ra | +126 | Sec motion ra | |||||||||
Pri motion dec | -089 | Sec motion dec | |||||||||
Notes | N O (See Notes, Orbital solution) |
Show | name | SAO | coord | wds_name | last | obs | pa | sep | mag1 | mag2 | d_mag | orb | current |
Show | 22230 | 01 23 21 +58 08 36 | STF 115 AB | 2020 | 106 | 156 | 0.5 | 7.10 | 7.30 | 0.20 | Y | <=== | |
Show | 22230 | 01 23 21 +58 08 36 | STF 115 AB,C | 2008 | 9 | 286 | 60.3 | 6.40 | 13.09 | 6.69 | |||
Show | HD 8272 | 22230 | 01 23 21 +58 08 36 | STF 115 AB,D | 2003 | 10 | 186 | 240.1 | 6.40 | 10.99 | 4.59 | ||
Show | 22230 | 01 23 21 +58 08 36 | TOK 455 AG | 2003 | 4 | 154 | 999.9 | 6.40 | 8.65 | 2.25 | |||
Show | 01 23 18 +58 04 35 | LYS 8 DE | 2015 | 12 | 96 | 43.2 | 10.99 | 11.84 | 0.85 | ||||
Show | 01 23 18 +58 04 35 | LYS 8 DF | 2015 | 11 | 338 | 23.4 | 10.99 | 13.37 | 2.38 |
Constellation | Cassiopeia | SAO | 22230 | HIP | 6486 | Tycho2 | 3682-02261-1 | ||||
HD | 8272 | HR | 391 | GC | 1662 | ADS | 1105 | ||||
BD | BD+57 274 | Distance | 58.82 | Distance ly | 191.87 |
Period (P) | 222y | Periastron (T) | 1984.8y | Semi-major axis (a) | 0.83a | |||
Eccentricity (e) | 0.93 | Inclination (i) | 99° | Longitude of periastron (ω) | 130° | |||
Node (Ω) | 137° | Notes | n | Reference | Sod1999 | |||
Equinox | 2000 | Last observation | Grade | 3 | (1=Definitive, 9=Indet.) |
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Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st. |
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Measures: green=micrometric, blue=interferometric, purple=photographic |
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discov_num | notes | refcode |
STF 115 | First measured by F.W. Struve in 1836 at an angular separation of | Hrt1989 |
0".68, this system had opened to 1".2 by 1910, then steadily closed | ||
to 0".35 at the time of the first speckle measurement in 1978. | ||
The pair reached an apparent minimum separation of 0".01 in the | ||
spring of 1984. | ||
1983.7107 This autocorrelogram was remeasured; the new results are | ||
listed in the catalog. | ||
AB: Malkov et al. (2012) derive dynamical, photometric, and | ||
spectroscopic masses 2.36 +/- 0.67, 2.80, and 1.20 Msun, respectively. | Mlk2012 |
refcode | metd | author | reference |
Hrt1989 | orb - | Hartkopf, W.I., McAlister, H.A., & Franz, O.G. | 1989AJ.....98.2275B |
Hrt1989 | AJ 98, 1014, 1989 | ||
Mlk2012 | not - | Malkov, O.Yu., Tamazian, V.S., Docobo, J.A., & Chulkov, D.A. | 2012A&A...546A..69M |
Mlk2012 | A&A 546, A69, 2012 | ||
Sod1999 | orb - | Soderhjelm, S. | 1999A&A...341..121S |
Sod1999 | A&A 341, 121, 1999 |
idgroup | discov | author |
1 | LYS | Louys, L. |
4 | STF | Struve, F.G.W. |
37 | TOK | Tokovinin, A.A. |
84 | TOK | Tokovinin, A.A., Balega, Y.Y., Pluzhnik, E.A., Shatsky, N.I., Gorynya, N.A., & |
84 | TOK | Weigelt, G. |
98 | TOK | Tokovinin, A., Cantarutti, R., Tighe, R., Schurter, P., van der Bliek, N., |
98 | TOK | Martinez, M., & Mondaca, E. |
166 | TOK | Tokovinin, A., Corbett, H., Fors, O., Howard, W., Law, N.M., Moe, M., |
166 | TOK | Ratzloff, J. & Walter, F.M. |
coord_2000 | discov_num | comp | epoch | obs | pa | sep | mag_pri | mag_sec | spectr | notes | coord_arcsec_2000 |
01234+5809 | STF 115 | AB | 2004 | 91 | 166 | 0.3 | 7.10 | 7.30 | F5V | NOD | 012321.27+580835.6 |
01234+5809 | STF 115 | AB | 2007 | 93 | 164 | 0.3 | 7.10 | 7.30 | F5V | NOD | 012321.27+580835.6 |
01234+5809 | STF 115 | AB | 2010 | 95 | 161 | 0.3 | 7.10 | 7.30 | F5V | NOD | 012321.27+580835.6 |
01234+5809 | STF 115 | AB | 2012 | 96 | 161 | 0.4 | 7.10 | 7.30 | F5V | NOD | 012321.27+580835.6 |
01234+5809 | STF 115 | AB | 2014 | 97 | 159 | 0.4 | 7.10 | 7.30 | F5V | NOD | 012321.27+580835.6 |
01234+5809 | STF 115 | AB | 2016 | 102 | 160 | 0.4 | 7.10 | 7.30 | F5V | NO | 012321.27+580835.6 |
01234+5809 | STF 115 | AB | 2018 | 104 | 160 | 0.5 | 7.10 | 7.30 | F5V | NO | 012321.27+580835.6 |
01234+5809 | STF 115 | AB | 2020 | 106 | 156 | 0.5 | 7.10 | 7.30 | F5V | NO | 012321.27+580835.6 |
Show | date | username | difficulty | separation | pa_estim | interest | notes |
Show | 20/02/05 | Adam Long | very difficult | oblunged | 140 | Very tight fig-8/ rod pair not clearly seen. PA suspected quickly but very hard to get a confirmatory view - almost reliant on subconscious. Primary preceding? Brightest star 1 deg E of Owl cluster, should widen through res limit in next years |
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 | C | D | E | F | |
B | pa=166.6° sep=0.45" | |||||
C | pa=298.0° sep=34.71" | pa=298.6° sep=35.01" | ||||
D | pa=185.7° sep=241.59" | pa=185.7° sep=241.16" | pa=178.5° sep=256.81" | |||
E | pa=180.3° sep=244.70" | pa=180.3° sep=244.26" | pa=173.6° sep=262.67" | pa=100.7° sep=23.15" | ||
F | pa=187.4° sep=220.59" | pa=187.5° sep=220.17" | pa=179.5° sep=235.06" | pa=347.9° sep=22.16" | pa=313.5° sep=37.75" | |
G | pa=165.3° sep=1084.06" | pa=165.3° sep=1083.61" | pa=163.9° sep=1107.99" | pa=159.6° sep=862.03" | pa=160.9° sep=850.27" | pa=159.8° sep=883.97" |
Coord arcsec 2000 | 012321.27+580835.6 | Mag | 7.1 | Spectral class | F5V (yellow-white) | PmRA | 126.00 | ||||
PmDE | -89.0 | SAO | 22230 | HIP | 6486 | Tycho2 | 3682-02261-1 | ||||
HD | 8272 | HR | 391 | GC | 1662 | BD | BD+57 274 |
Tycho2 | 3682-02261-1 | Pflag | RAmdeg | 20.83921820 | DEmdeg | 58.14299618 | |||||
PmRA | 126.2 | PmDE | -89.4 | E RAmdeg | 3 | E DEmdeg | 3 | ||||
E pmRA | 1.0 | E pmDE | 1.1 | EpRAm | 1991.61 | EpDEm | 1991.69 | ||||
Num | 12 | Q RAmdeg | 1.3 | Q DEmdeg | 1.3 | Q pmRA | 1.4 | ||||
Q pmDE | 1.3 | BTmag | 6.861 | E BTmag | 0.014 | VTmag | 6.401 | ||||
E VTmag | 0.009 | Prox | 999 | TYC | T | HIP | 6486 | ||||
CCDM | RAdeg | 20.83867056 | DEdeg | 58.14319889 | EpRA 1990 | 1.75 | |||||
EpDE 1990 | 1.83 | E RAdeg | 3.3 | E DEdeg | 3.4 | Posflg | |||||
Corr | 0.3 |
SAO | 22230 | DelFlag | RA1950 | PmRA1950 | 0.0174 | ||||||
DE1950 | PmDE1950 | -0.088 | Vmag | 6.5 | SpType | F5 | |||||
Double code | Source | 70 | CatNum | 1662 | DM | BD+57 274 | |||||
DMcomp | BDsup | HD | 8272 | M HD | 0 | ||||||
GC | 1662 | RA1950rad | 0.34976219 | DE1950rad | 1.01025681 | PmRA2000 | 0.0175 | ||||
PmDE2000 | -0.094 |
Catalog | H | HIP | 6486 | Proxy | RAhms | 01 23 21.27 | |||||
DEdms | +58 08 35.6 | Vmag | 6.36 | VarFlag | R Vmag | H | |||||
RAdeg | 20.8386 | DEdeg | 58.1432 | AstroRef | Plx | 17.34 | |||||
CCDM | 01233+5808 | N CCDM | I | Nsys | 1 | Ncomp | 1 | ||||
MultFlag | Source | Qual | M HIP | ||||||||
Theta | Rho | HD | 8272 | BD | BD+57 274 | ||||||
CD | CP | Dm number | +57 274 | VIred | 0.51 | ||||||
SpType | F4V | R SpType | Coord arcsec 2000 | 012321.27+580835.6 |
HIP | 6486 | Sn | 5 | So | 0 | Nc | 1 | ||||
RArad | 0.3637027872 | DErad | 1.0147905246 | Plx | 17 | PmRA | 133.35 | ||||
PmDE | -90.54 | E RArad | 0.3 | E DErad | 0.26 | E Plx | 0.49 | ||||
E pmRA | 0.39 | E pmDE | 0.28 | Hpmag | 6.4597 | E Hpmag | 0.0006 | ||||
SHp | 0.009 | VA | 0 | BV | 0.457 | E BV | 0.003 | ||||
VI | 0.53 |
Coord arcsec 2000 | 012321.28+580835.2 | Mag | 7.3 | Calc delta mag | 0.2 | Calc coord | yes |
Coord arcsec 2000 | 012317.40+580851.9 | Mag | 13.09 | PmRA | -8.00 | PmDE | -2.0 | ||||
Calc delta mag | 5.99 | Calc coord | yes |
Coord arcsec 2000 | 012318.25+580435.2 | Coord calc | 012318.25+580435.2 | Mag | 10.99 | PmRA | -1.00 | ||||
PmDE | -1.0 | Tycho2 | 3678-00328-1 | Calc delta mag | 3.89 |
Tycho2 | 3678-00328-1 | Pflag | RAmdeg | 20.82607614 | DEmdeg | 58.07644668 | |||||
PmRA | -3.3 | PmDE | -0.6 | E RAmdeg | 21 | E DEmdeg | 24 | ||||
E pmRA | 2.8 | E pmDE | 2.8 | EpRAm | 1989.44 | EpDEm | 1988.95 | ||||
Num | 5 | Q RAmdeg | 0.4 | Q DEmdeg | 1.5 | Q pmRA | 0.4 | ||||
Q pmDE | 1.5 | BTmag | 11.174 | E BTmag | 0.039 | VTmag | 10.987 | ||||
E VTmag | 0.047 | Prox | 432 | TYC | T | HIP | |||||
CCDM | RAdeg | 20.82608833 | DEdeg | 58.07644000 | EpRA 1990 | 1.70 | |||||
EpDE 1990 | 1.87 | E RAdeg | 24.3 | E DEdeg | 27.8 | Posflg | |||||
Corr | 0.3 |
Coord arcsec 2000 | 012321.12+580430.9 | Mag | 11.84 | PmRA | -3.00 | PmDE | 0.0 | ||||
Calc delta mag | 4.74 | Calc coord | yes |
Coord arcsec 2000 | 012317.66+580456.9 | Mag | 13.37 | PmRA | -16.00 | PmDE | -15.0 | ||||
Calc delta mag | 6.27 | Calc coord | yes |
Coord arcsec 2000 | 012356.11+575107.5 | Mag | 8.65 | PmRA | 112.00 | PmDE | -99.0 | ||||
Calc delta mag | 1.55 | Calc coord | yes |