Coord 2000 | 02390+6235 | Discov num | STTA 28 | Comp | Coord arcsec 2000 | 02 38 58.34 +62 35 29.4 | |||||
Date first | 1875 | Date last | 2018 | Obs | 25 | ||||||
Pa first | 147 | Pa last | 147.9 | P.A. Now (θ) | 147.9° | ||||||
Sep first | 67.8 | Sep last | 67.9 | Sep. Now (ρ) | 67.9" | ||||||
Mag pri | 6.65 | Mag sec | 7.56 | delta mag (ΔM) | 0.91 | Spectral class | B/A+A2 (blue-white/white) | ||||
Pri motion ra | +033 | Sec motion ra | +033 | ||||||||
Pri motion dec | -025 | Sec motion dec | -025 | ||||||||
Notes | N V (See Notes, Proper motion indicates physical) |
Name | HD 16218 | Constellation | Cassiopeia | SAO | 12369 | HIP | 12346 | ||||
Tycho2 | 4051-00785-1 | Gaia DR2 | 466062367476393856 | HD | 16218 | GC | 3156 | ||||
BD | BD+61 444 | Distance | 125.31 | Distance ly | 408.76 |
discov_num | notes | refcode |
STTA 28 | B is BD+61@445. |
refcode | metd | author | reference |
STTA | (O. Struve DD - Appendix list) | ................... | |
Stt1864 | Ma - | Struve, O. | 1864MNRAS..24..149S |
Stt1864 | MNRAS 24, 149, 1864 | ||
Stt1866 | orb - | Struve, O. | . |
Stt1866 | Bull. Imp. Acad. Sci. St. Petersburg, 1866 | ||
Stt1874 | orb - | Struve, O. | . |
Stt1874 | Compte Rendus 79, 1467, 1874 | ||
Stt1875 | orb - | Struve, O. | 1875MNRAS..35..367S |
Stt1875 | MNRAS 35, 367, 1875 | ||
Stt1878 | Ma - | Struve, O. | 1878ObPul...9....1S |
Stt1878 | Pulkova Observations 9, 1, 1878 | ||
Stt1879A | Ma - | Struve, O. | 1879Obs.....2..304G |
Stt1879A | cited by Gledhill (Obs 2, 304, 1879) | ||
Stt1879B | Ma - | Struve, O. | 1879Obs.....3..245G |
Stt1879B | cited by Gledhill (Obs 3, 245, 1879) | ||
Stt1879C | Ma - | Struve, O. | 1879Obs.....2..344G |
Stt1879C | cited by Gledhill (Obs 2, 344, 1879) | ||
Stt1880A | Ma - | Struve, O. | 1880Obs.....2..605H |
Stt1880A | cited by Hunt (Obs. 3, 605, 1880) | ||
Stt1880B | Ma - | Struve, O. | 1880Obs.....3..535G |
Stt1880B | cited by Gledhill (Obs 3, 535, 1880) | ||
Stt1880C | Ma - | Struve, O. | 1880MNRAS..40..497B |
Stt1880C | cited by Burnham (MNRAS 40, 497, 1880) | ||
Stt1884A | Ma - | Struve, O. | 1884AReg...22..216S |
Stt1884A | cited by Sadler (Astr. Register 22, 216, 1884) | ||
Stt1893a | Ma j | Struve, O. | 1893ObPul..10....1S |
Stt1893a | Pulkova Obs. Observations 10, 1, 1893 | ||
Stt1906A | Ma - | Struve, O. | 1906MmRAS..56....1L |
Stt1906A | cited by Lewis (MemRAS 56, 1, 1906) | ||
Stt1906B | Ma j | Struve, O. | 1906QB821.B972..... |
Stt1906B | cited in BDS (Burnham Double Star Cat., 1906) | ||
Stt1908A | Ma - | Struve, O. | 1908MNRAS..68..465B |
Stt1908A | cited by Barnard (MNRAS 68, 465, 1908) | ||
Stt1913A | Ma - | Struve, O. | 1913QB811.B8....... |
Stt1913A | cited by Burnham (Carnegie Inst. Wash. #168, 1913) | ||
Stt1914A | Ma - | Struve, O. | 1914AN....198..107R |
Stt1914A | cited by Rabe (AN 198, 107, 1914) | ||
Stt1932A | Ma - | Struve, O. | 1932QB821.A43...... |
Stt1932A | cited in ADS (Aitken Double Star Cat., 1932) |
coord_2000 | discov_num | comp | epoch | obs | pa | sep | mag_pri | mag_sec | spectr | notes | coord_arcsec_2000 |
02390+6235 | STTA 28 | 2007 | 20 | 148 | 67.9 | 6.65 | 7.56 | B9 | N D | 023858.34+623529.4 | |
02390+6235 | STTA 28 | 2010 | 22 | 148 | 67.9 | 6.65 | 7.56 | B9 | N | 023858.34+623529.4 | |
02390+6235 | STTA 28 | 2015 | 23 | 148 | 67.8 | 6.65 | 7.56 | B9 | N W | 023858.34+623529.4 | |
02390+6235 | STTA 28 | 2017 | 25 | 147 | 67.8 | 6.65 | 7.56 | B9 | N W | 023858.34+623529.4 | |
02390+6235 | STTA 28 | 2018 | 25 | 148 | 67.9 | 6.65 | 7.56 | B9 | N W | 023858.34+623529.4 |
Show | date | username | difficulty | separation | pa_estim | interest | notes |
Show | 22/10/30 | Daedalus1 | mean difficulty | separated | 148 | Seeing Pickering7, good. Measure: theta 148, rho 68.0 +/- 0.060. Very nice pair of white stars. |
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=163.9° sep=59.87" |
Componente originario normalizzato | AB | Name | HD 16218 | Coord arcsec 2000 | 023858.34+623529.4 | Mag | 6.65 | ||||
Spectral class | B/A (blue-white) | PmRA | 33.00 | PmDE | -25.0 | SAO | 12369 | ||||
HIP | 12346 | Tycho2 | 4051-00785-1 | HD | 16218 | GC | 3156 | ||||
BD | BD+61 444 |
Tycho2 | 4051-00785-1 | Pflag | RAmdeg | 39.74308288 | DEmdeg | 62.59150548 | |||||
PmRA | 37.8 | PmDE | -25.1 | E RAmdeg | 4 | E DEmdeg | 4 | ||||
E pmRA | 1.2 | E pmDE | 1.3 | EpRAm | 1991.26 | EpDEm | 1991.47 | ||||
Num | 12 | Q RAmdeg | 0.5 | Q DEmdeg | 0.8 | Q pmRA | 0.5 | ||||
Q pmDE | 0.8 | BTmag | 6.629 | E BTmag | 0.014 | VTmag | 6.648 | ||||
E VTmag | 0.009 | Prox | 678 | TYC | T | HIP | 12346 | ||||
CCDM | RAdeg | 39.74288889 | DEdeg | 62.59156361 | EpRA 1990 | 1.48 | |||||
EpDE 1990 | 1.66 | E RAdeg | 3.6 | E DEdeg | 3.5 | Posflg | |||||
Corr | 0.1 |
SAO | 12369 | DelFlag | RA1950 | PmRA1950 | 0.0028 | ||||||
DE1950 | PmDE1950 | -0.02 | Vmag | 6.8 | SpType | B9 | |||||
Double code | Source | 70 | CatNum | 3156 | DM | BD+61 444 | |||||
DMcomp | BDsup | HD | 16218 | M HD | 0 | ||||||
GC | 3156 | RA1950rad | 0.67654034 | DE1950rad | 1.08867288 | PmRA2000 | 0.0026 | ||||
PmDE2000 | -0.025 |
Catalog | H | HIP | 12346 | Proxy | RAhms | 02 38 58.29 | |||||
DEdms | +62 35 29.6 | Vmag | 6.66 | VarFlag | R Vmag | H | |||||
RAdeg | 39.7429 | DEdeg | 62.5916 | AstroRef | Plx | 8.44 | |||||
CCDM | 02390+6235 | N CCDM | I | Nsys | 2 | Ncomp | 1 | ||||
MultFlag | Source | Qual | M HIP | ||||||||
Theta | Rho | HD | 16218 | BD | BD+61 444 | ||||||
CD | CP | Dm number | +61 444 | VIred | 0 | ||||||
SpType | B9 | R SpType | Coord arcsec 2000 | 023858.29+623529.6 |
HIP | 12346 | Sn | 5 | So | 0 | Nc | 1 | ||||
RArad | 0.6936441298 | DErad | 1.092428926 | Plx | 7.98 | PmRA | 41 | ||||
PmDE | -23.89 | E RArad | 0.24 | E DErad | 0.3 | E Plx | 0.45 | ||||
E pmRA | 0.28 | E pmDE | 0.38 | Hpmag | 6.6658 | E Hpmag | 0.0008 | ||||
SHp | 0.008 | VA | 0 | BV | -0.015 | E BV | 0.005 | ||||
VI | 0.01 |
Ccdm | 02390+6235 | RComp | Comp | A | Note1 | ||||||
Note2 | Discov num | DRAs | -1.69 | DDEs | 29.3 | ||||||
R dRAs | 10 | Year | Theta | Rho | |||||||
Obs | 2 | Vmag | 6.8 | Sp | B9 | PmNote | * | ||||
PmRA | 29 | PmDE | -26 | Dm number | +61 444 | Cat1 | BD | ||||
Name2 | +62 212 | Cat2 | AGK2/3 | HD | 16218 | M HD | |||||
ADS BDS | B 1329 | M ADS BDS | N IDS | IDS | 02312N6209A | ||||||
HIC | 12346 |
Componente originario normalizzato | AB | Coord arcsec 2000 | 023900.75+623431.9 | Mag | 7.56 | Spectral class | A2 (white) | ||||
PmRA | 33.00 | PmDE | -25.0 | Calc delta mag | 0.91 | Calc coord | yes |
Ccdm | 02390+6235 | RComp | Comp | B | Note1 | ||||||
Note2 | Discov num | STT4028 | DRAs | 3.55 | DDEs | -28.3 | |||||
R dRAs | 10 | Year | 1875 | Theta | 147 | Rho | 67.8 | ||||
Obs | 6 | Vmag | 7.5 | Sp | A0 | PmNote | * | ||||
PmRA | 35 | PmDE | -26 | Dm number | +61 445 | Cat1 | BD | ||||
Name2 | +62 213 | Cat2 | AGK2/3 | HD | 16230 | M HD | |||||
ADS BDS | B 1329 | M ADS BDS | N IDS | IDS | 02312N6209B | ||||||
HIC | 12355 |