Coord 2000 | 00057+4549 | Discov num | STT 547 | Comp | AB | Coord arcsec 2000 | 00 05 41.03 +45 48 43.3 | ||||
Date first | 1876 | Date last | 2021 | Obs | 436 | ||||||
Pa first | 114 | Pa last | 190.5 | P.A. Now (θ) | 190.5° | ||||||
Sep first | 4.5 | Sep last | 5.937 | Sep. Now (ρ) | 5.937" | ||||||
Mag pri | 8.98 | Mag sec | 9.15 | delta mag (ΔM) | 0.17 | Spectral class | K2V+M3V (yellow-orange/red) | ||||
Pri motion ra | +879 | Sec motion ra | +838 | ||||||||
Pri motion dec | -154 | Sec motion dec | -163 | ||||||||
Notes | N O W Z (See Notes, Orbital solution, , Parallax indicates components are physical) |
Show | name | SAO | coord | wds_name | last | obs | pa | sep | mag1 | mag2 | d_mag | orb | current |
Show | HD 38 | 00 05 41 +45 48 43 | STT 547 AB | 2021 | 436 | 191 | 5.9 | 8.98 | 9.15 | 0.17 | Y | <=== | |
Show | 00 05 41 +45 48 43 | STT 547 AC | 2020 | 33 | 263 | 120.7 | 8.98 | 13.71 | 4.73 | ||||
Show | 00 05 41 +45 48 43 | STT 547 AD | 2020 | 41 | 232 | 113.3 | 8.98 | 12.51 | 3.53 | ||||
Show | 00 05 41 +45 48 43 | STT 547 AE | 2020 | 50 | 340 | 60.6 | 8.98 | 11.75 | 2.77 | ||||
Show | 00 05 41 +45 48 43 | STT 547 AF | 2018 | 42 | 254 | 330.0 | 8.98 | 10.19 | 1.21 | Y | |||
Show | 00 05 41 +45 48 43 | POP 217 AP | 2020 | 41 | 311 | 18.9 | 8.98 | 13.40 | 4.42 | ||||
Show | 00 05 41 +45 48 43 | POP 217 AQ | 2006 | 7 | 130 | 20.0 | 8.98 | 16.00 | 7.02 | ||||
Show | 36046 | 00 05 41 +45 48 43 | POP 217 AX | 2006 | 2 | 222 | 12.0 | 8.98 | |||||
Show | 00 05 41 +45 48 43 | POP 217 AY | 2018 | 9 | 78 | 188.8 | 8.98 | 14.80 | 5.82 | ||||
Show | 00 05 41 +45 48 37 | STT 547 BC | 2016 | 8 | 266 | 115.7 | 9.15 | 13.71 | 4.56 | ||||
Show | 00 05 41 +45 48 37 | STT 547 BD | 2016 | 10 | 233 | 106.4 | 9.15 | 12.51 | 3.36 | ||||
Show | 00 05 41 +45 48 37 | STT 547 BE | 2016 | 16 | 346 | 64.4 | 9.15 | 11.75 | 2.60 | ||||
Show | 00 05 41 +45 48 37 | STT 547 BF | 2018 | 35 | 251 | 324.2 | 9.15 | 10.19 | 1.04 | ||||
Show | 00 05 41 +45 48 37 | STT 547 BP | 2016 | 9 | 331 | 20.3 | 9.15 | 13.10 | 3.95 | ||||
Show | 00 05 31 +45 48 26 | PAL 2 Ca,Cb | 2020 | 22 | 91 | 6.1 | 13.71 | 14.90 | 1.19 | ||||
Show | 00 06 00 +45 49 20 | POP 217 YG | 2020 | 12 | 189 | 9.7 | 14.80 | 15.80 | 1.00 |
Name | HD 38 | Constellation | Andromeda | HIP | 473 | Tycho2 | 3246-00874-1 | ||||
HD | 38 | ADS | 48 | GL | Gl 4A | BD | BD+45 4408 | ||||
Distance | 11.31 | Distance ly | 36.89 |
Period (P) | 1550.637y | Periastron (T) | 1970.438y | Semi-major axis (a) | 11.7613a | |||
Eccentricity (e) | 0.4973 | Inclination (i) | 56.68° | Longitude of periastron (ω) | 349.37° | |||
Node (Ω) | 175.14° | Notes | n | Reference | Pop1996b | |||
Equinox | 2000 | Last observation | 1994 | Grade | 4 | (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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Period (P) | 553.5y | ± 120.3 | Periastron (T) | 2112y | ± 28.8 | Semi-major axis (a) | 6.39a | ± 0.89 |
Eccentricity (e) | 0.19 | ± 0.08 | Inclination (i) | 54.3° | ± 2.3 | Longitude of periastron (ω) | 256.8° | ± 31.4 |
Node (Ω) | 12.5° | ± 2.8 | Notes | n | Reference | Pko2020b | ||
Equinox | Last observation | 2012 | Grade | 4 | (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 |
STT 547 | Premature orbits have been computed. Motion direct. | |
Both A and B have variable RV (ranges 45 and 25 km/s, respectively). | ||
Another star (9.9, 330") has common proper motion. | ||
AB: Bolometric corrections and component masses determined from | ||
M-L relation. A family of possible orbits were determined by Kiyaeva | Kiy2001 | |
(2001) for the F component relative to AB pair (Note: only the | ||
shortest-period solution is presented in orbit catalog.) | ||
AB: NLTT 172/173 | Chm2004 | |
AD and AE: Optical pairs, based on study of relative motion of the | ||
components using the method of apparent motion parameters. | Kiy2008 | |
AF: HIP 473 + HIP 428. | ||
AC and AD: Rectilinear solution by Pavlovic et al. (2013). | Pal2013 | |
POP 217 | AP: Rectilinear solution by Cvetkovic (2011). | Cve2011d |
refcode | metd | author | reference |
Chm2004 | E - | Chaname, J. & Gould, A. | 2004ApJ...601..289C |
Chm2004 | ApJ 601, 289, 2004 | ||
Chm2004 | (Photometry, coordinates, and astrometry from rNLTT. Astrometry from early | ||
Chm2004 | versions of 2MASS and UCAC, with date given only as "circa 2000". Measures | ||
Chm2004 | identical to discovery observations - predominantly close pairs - were assumed | ||
Chm2004 | not new observations, so not included in WDS. Similar concerns when primary and | ||
Chm2004 | secondary magnitudes or proper motions were the same.) | ||
Cve2011d | lin - | Cvetkovic, Z. | 2011IAUDS.175....1C |
Cve2011d | Inf. Circ. 175, 1, 2011 | ||
Kiy2001 | Pa u | Kiyaeva, O.V., Kisselev, A.A., Polyakov, E.V., & Rafal'Skii, V.B. | 2001SvAL...27..391K |
Kiy2001 | +orb | SvAL 27, 391, 2001 (Pisma Astron. Zhur. 27, 456, 2001) | |
Kiy2008 | - | Kiyaeva, O.V., Kiselev, A.A. & Izmailov, I.S. | 2008SvAL...32..405K |
Kiy2008 | SvAL 34, 405, 2008 | ||
Pal2013 | C j | Pavlovic, R., Cvetkovic, Z., Boeva, S., Vince, O. & Stojanovic, M. | 2013AJ....146...52P |
Pal2013 | +lin | AJ 146, 52, 2013 | |
PkO2020b | C+ . | Kiyaeva, O.V., Zhuchkov, R.Ya. & Izmailov, I.S. | 2020AstBu..75..425K |
PkO2020b | +orb+ | Astrophys. Bull. 75, 425, 2020 | |
PkO2020b | +Po+ | ||
PkO2020b | +Hg | ||
Pop1996b | orb - | Popovic, G.M. & Pavlovic, R. | 1996BOBeo.153...57P |
Pop1996b | Bull. Obs. Astron. Belgrade #153, 57, 1996 |
idgroup | discov | author |
1 | STT | Struve, O. |
coord_2000 | discov_num | comp | epoch | obs | pa | sep | mag_pri | mag_sec | spectr | notes | coord_arcsec_2000 |
00057+4549 | STT 547 | AB | 2007 | 380 | 188 | 6.0 | 8.98 | 9.15 | K6 M0 | NODV | 000541.03+454843.3 |
00057+4549 | STT 547 | AB | 2008 | 383 | 186 | 6.1 | 8.98 | 9.15 | K6 M0 | NODV | 000541.03+454843.3 |
00057+4549 | STT 547 | AB | 2010 | 392 | 186 | 6.0 | 8.98 | 9.15 | K6 M0 | NOD | 000541.03+454843.3 |
00057+4549 | STT 547 | AB | 2011 | 394 | 186 | 6.0 | 8.98 | 9.15 | K6 M0 | NOD | 000541.03+454843.3 |
00057+4549 | STT 547 | AB | 2012 | 397 | 187 | 6.0 | 8.98 | 9.15 | K6 M0 | NOD | 000541.03+454843.3 |
00057+4549 | STT 547 | AB | 2013 | 399 | 186 | 5.8 | 8.98 | 9.15 | K6 M0 | NOD | 000541.03+454843.3 |
00057+4549 | STT 547 | AB | 2015 | 399 | 189 | 6.0 | 8.98 | 9.15 | K6+M0 | NO Z | 000541.03+454843.3 |
00057+4549 | STT 547 | AB | 2016 | 408 | 189 | 6.0 | 8.98 | 9.15 | K6+M0 | NO Z | 000541.03+454843.3 |
00057+4549 | STT 547 | AB | 2017 | 415 | 189 | 6.0 | 8.98 | 9.15 | K6+M0 | NO Z | 000541.03+454843.3 |
00057+4549 | STT 547 | AB | 2018 | 417 | 190 | 6.0 | 8.98 | 9.15 | K6+M0 | NO Z | 000541.03+454843.3 |
00057+4549 | STT 547 | AB | 2020 | 421 | 190 | 6.0 | 8.98 | 9.15 | K6+M0 | NOWZ | 000541.03+454843.3 |
00057+4549 | STT 547 | AB | 2021 | 434 | 191 | 5.9 | 8.98 | 9.15 | K6+M0 | NOWZ | 000541.03+454843.3 |
Show | date | username | difficulty | separation | pa_estim | interest ⇓ | notes |
Show | 21/11/02 | daedalus1 | mean difficulty | separated | very interesting | Seeing: Pickering 7, Measures: theta 191 deg., rho 6".62 | |
Show | 21/11/04 | daedalus1 | mean difficulty | separated | Seeing Pickering 6, Measures: theta 195 deg., rho 5".98 |
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 | Cb | D | E | F | G | P | Q | X | |
B | pa=183.0° sep=5.91" | ||||||||||
C | pa=260.4° sep=102.95" | pa=263.7° sep=101.83" | |||||||||
Cb | pa=260.0° sep=98.80" | pa=263.3° sep=97.63" | pa=91.7° sep=4.24" | ||||||||
D | pa=221.6° sep=93.52" | pa=224.0° sep=88.98" | pa=143.3° sep=65.87" | pa=146.3° sep=63.32" | |||||||
E | pa=346.0° sep=58.80" | pa=347.5° sep=64.47" | pa=49.7° sep=114.52" | pa=48.2° sep=111.41" | pa=20.7° sep=135.68" | ||||||
F | pa=247.5° sep=239.22" | pa=248.8° sep=236.73" | pa=238.1° sep=140.76" | pa=239.0° sep=144.31" | pa=262.3° sep=160.37" | pa=234.3° sep=254.59" | |||||
G | pa=82.3° sep=202.18" | pa=80.6° sep=203.37" | pa=81.7° sep=305.10" | pa=81.5° sep=300.93" | pa=69.7° sep=279.89" | pa=97.9° sep=216.62" | pa=74.3° sep=437.80" | ||||
P | pa=321.4° sep=15.91" | pa=332.3° sep=20.70" | pa=72.1° sep=96.23" | pa=71.2° sep=92.25" | pa=32.4° sep=97.48" | pa=174.5° sep=44.83" | pa=63.8° sep=235.28" | pa=266.0° sep=210.79" | |||
Q | pa=140.3° sep=16.71" | pa=122.3° sep=13.01" | pa=87.8° sep=112.29" | pa=87.7° sep=108.06" | pa=51.9° sep=92.50" | pa=160.4° sep=74.22" | pa=71.3° sep=244.70" | pa=258.1° sep=193.85" | pa=140.8° sep=32.62" | ||
X | pa=212.4° sep=10.48" | pa=240.9° sep=6.06" | pa=85.1° sep=96.27" | pa=84.8° sep=92.06" | pa=42.8° sep=83.20" | pa=172.5° sep=66.46" | pa=69.0° sep=230.73" | pa=260.1° sep=209.09" | pa=168.5° sep=21.71" | pa=283.8° sep=16.78" | |
Y | pa=79.6° sep=204.68" | pa=78.0° sep=206.14" | pa=79.9° sep=307.63" | pa=79.7° sep=303.48" | pa=68.0° sep=284.30" | pa=95.4° sep=216.51" | pa=73.1° sep=441.46" | pa=6.0° sep=9.65" | pa=83.4° sep=212.67" | pa=75.4° sep=197.04" | pa=77.6° sep=211.94" |
Name | HD 38 | Coord arcsec 2000 | 000541.03+454843.3 | Mag | 8.98 | Spectral class | K2V (yellow-orange) | ||||
PmRA | 879.00 | PmDE | -154.0 |
Coord arcsec 2000 | 000541.00+454837.4 | Coord calc | 000541.00+454837.4 | Mag | 9.15 | Spectral class | M0 (red) | ||||
PmRA | 838.00 | PmDE | -163.0 | Calc delta mag | 0.17 |
Coord arcsec 2000 | 000531.32+454826.2 | Coord calc | 000533.04+454829.2 | Mag | 13.71 | Mag composta | 13.71 | ||||
PmRA | -5.00 | PmDE | 1.0 | Calc delta mag | 4.73 |
Coord arcsec 2000 | 000531.73+454826.1 | Mag | 14.9 | Calc delta mag | 5.92 | Calc coord | yes |
Coord arcsec 2000 | 000535.09+454733.4 | Mag | 12.51 | PmRA | 3.00 | PmDE | -1.0 | ||||
Tycho2 | 3246-01146-1 | Calc delta mag | 3.53 | Calc coord | yes |
Tycho2 | 3246-01146-1 | Pflag | RAmdeg | 1.39269682 | DEmdeg | 45.79174246 | |||||
PmRA | 2.9 | PmDE | -0.2 | E RAmdeg | 83 | E DEmdeg | 77 | ||||
E pmRA | 1.9 | E pmDE | 1.7 | EpRAm | 1960.58 | EpDEm | 1960.39 | ||||
Num | 4 | Q RAmdeg | 1.4 | Q DEmdeg | 0.2 | Q pmRA | 1.4 | ||||
Q pmDE | 0.2 | BTmag | 12.364 | E BTmag | 0.133 | VTmag | 12.505 | ||||
E VTmag | 0.173 | Prox | 936 | TYC | HIP | ||||||
CCDM | RAdeg | 1.39268889 | DEdeg | 45.79174250 | EpRA 1990 | 1.86 | |||||
EpDE 1990 | 1.66 | E RAdeg | 101.5 | E DEdeg | 94.4 | Posflg | |||||
Corr | -0.1 |
Coord arcsec 2000 | 000539.67+454940.4 | Mag | 11.75 | PmRA | 9.00 | PmDE | -9.0 | ||||
Tycho2 | 3246-01100-1 | Calc delta mag | 2.77 | Calc coord | yes |
Tycho2 | 3246-01100-1 | Pflag | RAmdeg | 1.42007919 | DEmdeg | 45.82706189 | |||||
PmRA | 12.4 | PmDE | -8.1 | E RAmdeg | 58 | E DEmdeg | 59 | ||||
E pmRA | 1.7 | E pmDE | 1.6 | EpRAm | 1976.80 | EpDEm | 1973.09 | ||||
Num | 4 | Q RAmdeg | 2.1 | Q DEmdeg | 0.4 | Q pmRA | 2.1 | ||||
Q pmDE | 0.4 | BTmag | 12.373 | E BTmag | 0.145 | VTmag | 11.749 | ||||
E VTmag | 0.123 | Prox | 529 | TYC | HIP | ||||||
CCDM | RAdeg | 1.42003861 | DEdeg | 45.82708056 | EpRA 1990 | 1.80 | |||||
EpDE 1990 | 1.61 | E RAdeg | 62.9 | E DEdeg | 65.6 | Posflg | |||||
Corr | 0.0 |
Coord arcsec 2000 | 000519.89+454711.8 | Mag | 10.19 | Spectral class | M2V (red) | PmRA | 870.00 | ||||
PmDE | -151.0 | Calc delta mag | 1.21 | Calc coord | yes |
Coord arcsec 2000 | 000600.19+454910.5 | Mag | 15.8 | PmRA | -8.00 | PmDE | -14.0 | ||||
Calc delta mag | 6.82 | Calc coord | yes |
Coord arcsec 2000 | 000540.08+454855.7 | Mag | 13.4 | PmRA | 10.00 | PmDE | 4.0 | ||||
Calc delta mag | 4.42 | Calc coord | yes |
Coord arcsec 2000 | 000542.05+454830.4 | Mag | 16 | PmRA | 2.00 | PmDE | 2.0 | ||||
Calc delta mag | 7.02 | Calc coord | yes |
Coord arcsec 2000 | 000540.49+454834.5 | SAO | 36046 | HIP | 473 | Tycho2 | 3246-00874-2 | ||||
HD | 38 | GC | 71 | BD | BD+45 4408 | Calc delta mag | 8.98 | ||||
Calc coord | yes |
Tycho2 | 3246-00874-2 | Pflag | X | RAmdeg | DEmdeg | ||||||
PmRA | PmDE | E RAmdeg | E DEmdeg | ||||||||
E pmRA | E pmDE | EpRAm | EpDEm | ||||||||
Num | Q RAmdeg | Q DEmdeg | Q pmRA | ||||||||
Q pmDE | BTmag | 10.757 | E BTmag | 0.037 | VTmag | 9.150 | |||||
E VTmag | 0.016 | Prox | 61 | TYC | T | HIP | 473 | ||||
CCDM | B | RAdeg | 1.41809222 | DEdeg | 45.81075861 | EpRA 1990 | 1.84 | ||||
EpDE 1990 | 1.51 | E RAdeg | 10.8 | E DEdeg | 13.6 | Posflg | |||||
Corr | 0.0 |
SAO | 36046 | DelFlag | RA1950 | PmRA1950 | 0.0835 | ||||||
DE1950 | PmDE1950 | -0.127 | Vmag | 9.3 | SpType | K2 | |||||
Double code | Source | 70 | CatNum | 71 | DM | BD+45 4408 | |||||
DMcomp | A | BDsup | HD | 38 | M HD | 1 | |||||
GC | 71 | RA1950rad | 0.01321295 | DE1950rad | 0.79475197 | PmRA2000 | 0.0841 | ||||
PmDE2000 | -0.132 |
Catalog | H | HIP | 473 | Proxy | H | RAhms | 00 05 40.28 | ||||
DEdms | +45 48 44.8 | Vmag | 8.2 | VarFlag | R Vmag | H | |||||
RAdeg | 1.41782 | DEdeg | 45.8125 | AstroRef | A | Plx | 85.1 | ||||
CCDM | 00057+4548 | N CCDM | I | Nsys | 1 | Ncomp | 2 | ||||
MultFlag | C | Source | Qual | A | M HIP | AB | |||||
Theta | 178 | Rho | 6.041 | HD | 38 | BD | BD+45 4408 | ||||
CD | CP | Dm number | +45 4408 | VIred | 1.7 | ||||||
SpType | K2 | R SpType | Coord arcsec 2000 | 000540.28+454844.8 |
HIP | 473 | Sn | 15 | So | 3 | Nc | 2 | ||||
RArad | 0.0247456501 | DErad | 0.7995781758 | Plx | 88.44 | PmRA | 887.48 | ||||
PmDE | -152.02 | E RArad | 0.89 | E DErad | 0.81 | E Plx | 1.56 | ||||
E pmRA | 1.02 | E pmDE | 1.04 | Hpmag | 8.2899 | E Hpmag | 0.0018 | ||||
SHp | 0.027 | VA | 0 | BV | 1.41 | E BV | 0.014 | ||||
VI | 1.7 |
Coord arcsec 2000 | 000600.29+454920.1 | Coord calc | 000600.29+454920.1 | Mag | 14.8 | PmRA | 5.00 | ||||
PmDE | 16.0 | Calc delta mag | 5.82 |