02020+0246 STF 202 AB (Alrescha)

 
 
02h 02m 02.80s +02° 45' 49.4" P.A. 264.00 sep 1.9 mag 4.10,5.17 Sp A0p+A3m dist. 46.17 pc (150.61 l.y.)
 
 
Coord 2000 02020+0246 Discov num STF 202 Comp AB Coord arcsec 2000 02 02 02.80 +02 45 49.4
Date first 1779 Date last 2019 Obs 631
Pa first 337 Pa last 263.5 P.A. Now (θ) 263.5°
Sep first 5.1 Sep last 1.93 Sep. Now (ρ) 1.93"
Mag pri 4.10 Mag sec 5.17 delta mag (ΔM) 1.07 Spectral class A0p+A3m (white/white)
Pri motion ra +042 Sec motion ra +042
Pri motion dec -011 Sec motion dec -011
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
02020+0246 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show Alrescha 110291 02 02 03 +02 45 49 STF 202 AB 2019 631 264 1.9 4.10 5.17 1.07 Y <===
Show 110291 02 02 03 +02 45 49 PWL 1 AC 2006 9 63 404.9 4.10 8.25 4.15
Show 110291 02 02 03 +02 45 49 PWL 1 AD 2006 9 335 434.5 4.10 8.59 4.49
Quadruple system
4 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Common name Alrescha Var name NSV705 Psc Constellation Pisces SAO 110291
HIP 9487 Tycho2 0040-01338-1 Gaia DR2 2517584007848935808 HD 12446
HR 596 GC 2452 ADS 1615 BD BD+02 317
Bayer Alpha Piscium Bayer name Alp Psc Flamsteed 113 Piscium Flamsteed name 113 Psc
Distance 46.17 Distance ly 150.61 Bayer greek α Psc
Other names Alrisha, Alresha, Kaitain, Okda
Meaning cords, tapes
 
 
ORBITAL ELEMENTS
 
 
Period (P)3267.4y Periastron (T)2188.58y Semi-major axis (a)7.4a
Eccentricity (e)0.465 Inclination (i)113.4° Longitude of periastron (ω)147.9°
Node (Ω)3.7° Notesn ReferenceSca2015c
Equinox2000 Last observation2015 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 272.7 1.843
2001 272.1 1.841
2002 271.5 1.839
2003 270.9 1.838
2004 270.2 1.836
2005 269.6 1.835
2006 269.0 1.834
2007 268.3 1.833
2008 267.7 1.832
2009 267.1 1.831
2010 266.5 1.831
2011 265.8 1.831
2012 265.2 1.831
2013 264.6 1.831
2014 263.9 1.831
2015 263.3 1.832
2016 262.7 1.833
2017 262.0 1.834
2018 261.4 1.835
2019 260.8 1.836
2020 260.1 1.838
2021 259.5 1.839
2022 258.9 1.841
2023 258.3 1.843
2024 257.6 1.846
2025 257.0 1.848
2026 256.4 1.851
2027 255.8 1.854
2028 255.2 1.857
2029 254.5 1.860
2030 253.9 1.864


 
grafico orbita
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.



 
 


wds02020%2B0246a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic
 
 
 
WDS 02020+0246 STF 202 AB (Alrescha) : NOTES
 
 
discov_num notes refcode
STF 202 alp Psc = Alrescha. Both components are listed as Alpha CVn variables
of small amplitude, and both may have variable RV. Sca1983f
See Baize & Petit catalog of doubles with variable component. Baz1989d
Absolute quadrant for 1998.657 determined by triple-correlation
techniques Pru2002b
Chevalier identified this star as alp Psc, but gave an incorrect Che1911
declination, leading to its initial designation as 02020+0320 CHE 32. Hrt2012b
PWL 1 AC: SHY 132. Bayesian analysis by Shaya & Olling (2011) indicates very Shy2011
high (near 100%) probability pair is physical.
STF 202 AB: H 2 12. MEv2010
 
 
REFERENCES
 
 
refcode metd author reference
Baz1989d - Baize, P. & Petit, M. 1989A&AS...77..497B
Baz1989d A&AS 77, 497, 1989
Che1911 Ma - Chevalier, Stanislas .
Che1911 +Pa Shanghai Obs. Zo-Se 7, B1, 1911 (corrections are described in Hrt2012b)
Hrt2012b E2 - Hartkopf, W.I. ...................
Hrt2012b Webb Soc., Double Star Circ. 20, 2012
MEv2010 - MacEvoy, B. ...................
MEv2010 private communication, 2010 (see http://www.handprint.com/ASTRO/index.html)
Pru2002b S j Prieur, J.-L., Koechlin, L., Ginestet, N., Carquillat, J.-M., Aristidi, E., 2002ApJS..142...95P
Pru2002b Scardia, M., Arnold, L., Avila, R., et al.
Pru2002b ApJS 142, 95, 2002
Sca1983f orb - Scardia, M. 1983AN....304..257S
Sca1983f AN 304, 257, 1983
Sca2015c orb - Scardia, M., Prieur, J.-L., Pansecchi, L., Argyle, R.W., & Zanutta, A. 2015IAUDS.186....1S
Sca2015c Inf. Circ. 186, 1, 2015
Shy2011 - Shaya, E.J. & Olling, R. 2011ApJS..192....2S
Shy2011 ApJS 192, 2, 2011
Shy2011 (Statistical analysis of probability that wide Hipparcos pairs are physical. Pairs
Shy2011 added to WDS only if probability 90% or greater.)
 
 
DISCOVERER
 
 
idgroup discov author
1 PWL Powell, E.B.
32 STF Struve, F.G.W.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
02020+0246 STF 202 AB 2007 588 269 1.8 4.10 5.17 A0p A3m NOD 020202.80+024549.4
02020+0246 STF 202 AB 2008 592 269 1.9 4.10 5.17 A0p A3m NOD 020202.80+024549.4
02020+0246 STF 202 AB 2009 597 268 1.8 4.10 5.17 A0p A3m NOD 020202.80+024549.4
02020+0246 STF 202 AB 2010 608 267 1.8 4.10 5.17 A0p A3m NOD 020202.80+024549.4
02020+0246 STF 202 AB 2011 610 266 1.9 4.10 5.17 A0p A3m NOD 020202.80+024549.4
02020+0246 STF 202 AB 2012 615 266 1.7 4.10 5.17 A0p A3m NOD 020202.80+024549.4
02020+0246 STF 202 AB 2014 620 263 1.6 4.10 5.17 A0p A3m NOD 020202.80+024549.4
02020+0246 STF 202 AB 2015 616 264 1.8 4.10 5.17 A0p+A3m NO 020202.80+024549.4
02020+0246 STF 202 AB 2016 619 265 1.8 4.10 5.17 A0p+A3m NO 020202.80+024549.4
02020+0246 STF 202 AB 2017 621 265 1.9 4.10 5.17 A0p+A3m NO 020202.80+024549.4
02020+0246 STF 202 AB 2019 631 264 1.9 4.10 5.17 A0p+A3m NO 020202.80+024549.4

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WDS 02020+0246 STF 202 AB (Alrescha) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 02020+0246 STF 202 AB (Alrescha) : MEASURES
 
 
No records found.

 
 
WDS 02020+0246 (Alrescha) : VIRTUAL EYEPIECE
 
 

02020+0246 STF 202A mag 4.1 Sp A0p 02020+0246 STF 202B sep 1.9 P.A. 263.50 mag 5.17 Sp A3m 02020+0246 PWL   1C sep 404.5 P.A. 63.30 mag 8.25 02020+0246 PWL   1D sep 434.4 P.A. 334.50 mag 8.59 virtual eyepiece
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Radius:
Components only
 
 
WDS 02020+0246 (Alrescha) : ALADIN DSS IMAGE @ 02h 02m 02.80s +02° 45' 49.4"
 
 
 
 
WDS 02020+0246 STF 202 AB (Alrescha) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only


02020+0246  STF 202AB (Alrescha) distance=0' 02022+0225  KPP3147 distance=21' 02039+0242  LDS3341 distance=28' 02013+0218  CLZ  19 distance=30' 01594+0258  A  2410 distance=42' 02020+0154  LDS3337 distance=52' 01583+0250  GWP 245 distance=56' 02061+0252  BAL1621 distance=61' 01592+0330  LDS3331 distance=63' 02063+0238  UC   26 distance=65' 02057+0203  NSC  11 distance=70' 02021+0355  OSV   1 distance=71' 02076+0244  UC  688 distance=84' 02017-0645  CAB  19 distance=89' 01569+0332  LDS3325 distance=90' 02003+0413  GIC9006 distance=92' 02024+0419  SCA 172AB distance=94' 02024+0419  SCA 172AC distance=94' 02001+0115  BAL 954 distance=95' 01571+0141  A  2409 distance=99' 02068+0354  HDS 281 distance=99' 02006+0422  UC  660 distance=99' 01554+0257  A  2407 distance=101' 01559+0151  STF 186 distance=108' 01556+0335  BAL2096 distance=109' 01598+0432  XMI   4 distance=112' 02011+0055  KPP3473 distance=112' 01556+0146  BU 1367 distance=115' 01548+0208  CVR1088 distance=116' 02052-0058  BU  516 distance=118' 02003-0046  CVR1091 distance=123' 01578+0433  KPP1288 distance=126' 02013+0040  WAA  22 distance=127' 01598-0043  A  1922 distance=127' 02007+0456  A  2324DC distance=130' 02007+0456  A  2324AB distance=133' 02007+0456  A  2324AD distance=133' 02007+0456  A  2324AC distance=133' 01544+0136  CVR1087 distance=134' 02040-0032  OSW  30 distance=137' 02050+0455  HJ 2111 distance=137' 02110+0317  GWP 264 distance=138' 01570+0444  XMI   3 distance=141' 01562+0437  BAL2598 distance=142' 01571+0046  WSP  71 distance=142' 02056+0031  BVD  23 distance=146' 02038-0020  TOK  38Aa,Ab distance=148' 02038-0020  H 5 102AB distance=148' 02038-0020  H 5 102AC distance=148' 02119+0236  LDS5370 distance=148' 02055+0056  LDS5365 distance=149' grafico limitrofi
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Show name coord_2000 discov# comp pa sep dist(')
Show Alrescha 02020+0246 STF 202 AB 264 1.9
Show Alrescha 02020+0246 PWL 1 AC 63 404.9
Show Alrescha 02020+0246 PWL 1 AD 335 434.5
Show 02022+0225 KPP3147 187 2.0 21
Show 02039+0242 LDS3341 60 13.8 28
Show 02013+0218 CLZ 19 151 64.1 30
Show 01594+0258 A 2410 221 2.7 42
Show 02020+0154 LDS3337 80 1.5 52
Show 01583+0250 GWP 245 226 11.0 56
Show 02061+0252 BAL1621 293 8.7 61
Show 01592+0330 LDS3331 52 3.9 63
Show 02063+0238 UC 26 309 67.2 65
Show 02057+0203 NSC 11 96 5.6 70
Show 02021+0355 OSV 1 16 17.6 71
Show 02076+0244 UC 688 272 43.3 84
Show 02017-0645 CAB 19 167 10.5 89
Show 01569+0332 LDS3325 241 9.2 90
Show 02003+0413 GIC9006 217 1.9 92
Show 02024+0419 SCA 172 AB 128 0.4 94
Show 02024+0419 SCA 172 AC 337 14.5 94
Show 02001+0115 BAL 954 303 6.7 95
Show 01571+0141 A 2409 26 2.5 99
Show 02068+0354 HDS 281 170 0.4 99
Show 02006+0422 UC 660 98 42.7 99
Show 01554+0257 A 2407 338 0.7 101
Show 01559+0151 STF 186 77 0.6 108
Show 01556+0335 BAL2096 22 2.9 109
Show 01598+0432 XMI 4 144 26.4 112
Show 02011+0055 KPP3473 274 34.8 112
Show 01556+0146 BU 1367 97 0.8 115
Show 01548+0208 CVR1088 264 3.5 116
Show 02052-0058 BU 516 317 0.7 118
Show 02003-0046 CVR1091 348 4.2 123
Show 01578+0433 KPP1288 313 9.8 126
Show 02013+0040 WAA 22 90 1.2 127
Show 01598-0043 A 1922 193 2.8 127
Show 02007+0456 A 2324 DC 21 87.9 130
Show 02007+0456 A 2324 AB 59 0.7 133
Show 02007+0456 A 2324 AD 169 131.0 133
Show 02007+0456 A 2324 AC 130 72.1 133
Show 01544+0136 CVR1087 338 3.2 134
Show 02040-0032 OSW 30 118 54.8 137
Show 02050+0455 HJ 2111 4 14.6 137
Show 02110+0317 GWP 264 192 7.1 138
Show 01570+0444 XMI 3 191 20.3 141
Show 01562+0437 BAL2598 99 20.4 142
Show 01571+0046 WSP 71 23 6.4 142
Show 02056+0031 BVD 23 342 30.9 146
Show 02038-0020 TOK 38 Aa,Ab 252 0.0 148
Show 02038-0020 H 5 102 AB 194 43.1 148
Show 02038-0020 H 5 102 AC 324 92.3 148

 
 
WDS 02020+0246 : COMPONENTS
 
 
  A B C
B pa=263.5°
sep=1.93"
 
C pa=63.3°
sep=404.50"
pa=63.4°
sep=406.31"
 
D pa=334.5°
sep=434.40"
pa=334.8°
sep=433.78"
pa=291.0°
sep=587.03"
 
 
02020+0246 A
 
 
Common name Alrescha Meaning cords, tapes Other names Alrisha, Alresha, Kaitain, Okda Coord arcsec 2000 020202.80+024549.4
Mag 4.1 Spectral class A0p (white) PmRA 42.00 PmDE -11.0
SAO 110291 HIP 9487 Tycho2 0040-01338-1 HD 12446
HR 596 GC 2452 BD BD+02 317 Bayer Alpha Piscium
Bayer name Alp Psc Flamsteed 113 Piscium Flamsteed name 113 Psc
Tycho2
Tycho2 0040-01338-1 Pflag P RAmdeg 30.51169807 DEmdeg 2.76374242
PmRA 41.8 PmDE -11.0 E RAmdeg 3 E DEmdeg 4
E pmRA 2.3 E pmDE 2.2 EpRAm 1991.81 EpDEm 1991.70
Num 3 Q RAmdeg 0.0 Q DEmdeg 0.2 Q pmRA 0.1
Q pmDE 0.3 BTmag 4.048 E BTmag 0.014 VTmag 4.100
E VTmag 0.009 Prox 19 TYC T HIP 9487
CCDM A RAdeg 30.51167361 DEdeg 2.76375639 EpRA 1990 1.84
EpDE 1990 1.75 E RAdeg 3.4 E DEdeg 3.6 Posflg D
Corr -0.3
SAO
SAO 110291 DelFlag RA1950 PmRA1950 0.002
DE1950 PmDE1950 0 Vmag 4.3 SpType A2p
Double code Source 70 CatNum 2452 DM BD+02 317
DMcomp BDsup HD 12446 M HD 9
GC 2452 RA1950rad 0.52122745 DE1950rad 0.04403581 PmRA2000 0.0022
PmDE2000 -0.005
Hipparcos
Catalog H HIP 9487 Proxy H RAhms 02 02 02.80
DEdms +02 45 49.5 Vmag 3.82 VarFlag 1 R Vmag G
RAdeg 30.5117 DEdeg 2.76376 AstroRef A Plx 23.45
CCDM 02020+0246 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AB
Theta 279 Rho 1.876 HD 12446 BD BD+02 317
CD CP Dm number +02 317 VIred 0.05
SpType A2 R SpType Coord arcsec 2000 020202.80+024549.5
Hipparcos 2
HIP 9487 Sn 15 So 3 Nc 2
RArad 0.5325290992 DErad 0.0482367341 Plx 21.66 PmRA 32.45
PmDE 0.04 E RArad 0.91 E DErad 0.57 E Plx 1.06
E pmRA 1.01 E pmDE 0.72 Hpmag 3.8281 E Hpmag 0.0009
SHp 0.007 VA 1 BV 0.024 E BV 0.023
VI 0.05
CCDM
Ccdm 02020+0246 RComp Comp A Note1
Note2 Discov num DRAs 2.82 DDEs -10.7
R dRAs 10 Year Theta Rho
Obs 2 Vmag 4.3 Sp A2 PmNote *
PmRA 35 PmDE 2 Dm number +02 317 Cat1 BD
Name2 +02 204 Cat2 AGK2/3 HD 12447 M HD
ADS BDS A 1615 M ADS BDS N IDS IDS 01569N0217A
HIC 9487
 
 
02020+0246 B
 
 
Coord arcsec 2000 020202.67+024549.2 Mag 5.17 Spectral class A3m (white) PmRA 42.00
PmDE -11.0 Tycho2 0040-01338-2 Calc delta mag 1.07 Calc coord yes
Tycho2
Tycho2 0040-01338-2 Pflag P RAmdeg 30.51169807 DEmdeg 2.76374242
PmRA 41.8 PmDE -11.0 E RAmdeg 3 E DEmdeg 4
E pmRA 2.3 E pmDE 2.2 EpRAm 1991.81 EpDEm 1991.70
Num 3 Q RAmdeg 0.0 Q DEmdeg 0.2 Q pmRA 0.1
Q pmDE 0.3 BTmag 5.445 E BTmag 0.014 VTmag 5.167
E VTmag 0.009 Prox 19 TYC T HIP 9487
CCDM B RAdeg 30.51116500 DEdeg 2.76383611 EpRA 1990 1.88
EpDE 1990 1.77 E RAdeg 3.6 E DEdeg 3.9 Posflg D
Corr -0.3
CCDM
Ccdm 02020+0246 RComp Comp B Note1 *
Note2 Discov num STF 202 DRAs DDEs
R dRAs Year 1831 Theta Rho
Obs 99 Vmag 5.2 Sp A2 PmNote
PmRA 33 PmDE -30 Dm number Cat1
Name2 Cat2 HD 12446 M HD
ADS BDS A 1615 M ADS BDS N IDS IDS 01569N0217B
HIC 9487
 
 
02020+0246 C
 
 
Coord arcsec 2000 020226.91+024851.3 Mag 8.25 PmRA 36.00 PmDE -10.0
SAO 110293 HIP 9519 Tycho2 0040-00236-1 HD 12484
BD BD+02 320 Calc delta mag 4.15 Calc coord yes
Tycho2
Tycho2 0040-00236-1 Pflag RAmdeg 30.61139256 DEmdeg 2.81585458
PmRA 39.9 PmDE -10.3 E RAmdeg 8 E DEmdeg 8
E pmRA 1.3 E pmDE 1.3 EpRAm 1990.90 EpDEm 1990.90
Num 8 Q RAmdeg 2.1 Q DEmdeg 0.4 Q pmRA 2.0
Q pmDE 0.4 BTmag 8.974 E BTmag 0.020 VTmag 8.246
E VTmag 0.015 Prox 999 TYC T HIP 9519
CCDM RAdeg 30.61130028 DEdeg 2.81587806 EpRA 1990 1.76
EpDE 1990 1.77 E RAdeg 7.9 E DEdeg 8.2 Posflg
Corr -0.2
SAO
SAO 110293 DelFlag RA1950 PmRA1950 0.0012
DE1950 PmDE1950 -0.022 Vmag 8.3 SpType F8
Double code Source 30 CatNum 573 DM BD+02 320
DMcomp BDsup HD 12484 M HD 0
GC RA1950rad 0.52296129 DE1950rad 0.04495074 PmRA2000 0.0014
PmDE2000 -0.027
Hipparcos
Catalog H HIP 9519 Proxy RAhms 02 02 26.71
DEdms +02 48 57.2 Vmag 8.18 VarFlag 1 R Vmag H
RAdeg 30.6113 DEdeg 2.81588 AstroRef Plx 21.24
CCDM N CCDM Nsys Ncomp 1
MultFlag Source Qual M HIP
Theta Rho HD 12484 BD BD+02 320
CD CP Dm number +02 320 VIred 0.74
SpType F8 R SpType Coord arcsec 2000 020226.71+024857.2
Hipparcos 2
HIP 9519 Sn 5 So 0 Nc 1
RArad 0.5342677822 DErad 0.0491463747 Plx 19.61 PmRA 34.45
PmDE -10.01 E RArad 0.78 E DErad 0.67 E Plx 0.97
E pmRA 0.91 E pmDE 0.76 Hpmag 8.3144 E Hpmag 0.0033
SHp 0.02 VA 0 BV 0.649 E BV 0.02
VI 0.71
 
 
02020+0246 D
 
 
Coord arcsec 2000 020150.33+025221.6 Mag 8.59 PmRA -70.00 PmDE -207.0
SAO 110287 HIP 9466 Tycho2 0040-00272-1 HD 12415
BD BD+02 315 Calc delta mag 4.49 Calc coord yes
Tycho2
Tycho2 0040-00272-1 Pflag RAmdeg 30.45668710 DEmdeg 2.87143081
PmRA -67.6 PmDE -203.0 E RAmdeg 9 E DEmdeg 10
E pmRA 1.3 E pmDE 1.3 EpRAm 1990.67 EpDEm 1990.57
Num 8 Q RAmdeg 1.2 Q DEmdeg 1.2 Q pmRA 1.2
Q pmDE 1.2 BTmag 9.182 E BTmag 0.021 VTmag 8.593
E VTmag 0.016 Prox 999 TYC T HIP 9466
CCDM RAdeg 30.45684222 DEdeg 2.87189833 EpRA 1990 1.74
EpDE 1990 1.70 E RAdeg 9.0 E DEdeg 10.4 Posflg
Corr -0.2
SAO
SAO 110287 DelFlag RA1950 PmRA1950 -0.0059
DE1950 PmDE1950 -0.222 Vmag 8.8 SpType G0
Double code Source 30 CatNum 569 DM BD+02 315
DMcomp BDsup HD 12415 M HD 0
GC RA1950rad 0.52028622 DE1950rad 0.04596254 PmRA2000 -0.0057
PmDE2000 -0.226
Hipparcos
Catalog H HIP 9466 Proxy RAhms 02 01 49.64
DEdms +02 52 18.9 Vmag 8.57 VarFlag R Vmag G
RAdeg 30.4568 DEdeg 2.87192 AstroRef Plx 13.4
CCDM N CCDM Nsys Ncomp 1
MultFlag Source Qual M HIP
Theta Rho HD 12415 BD BD+02 315
CD CP Dm number +02 315 VIred 0.6
SpType G0 R SpType Coord arcsec 2000 020149.64+025218.9
Hipparcos 2
HIP 9466 Sn 5 So 0 Nc 1
RArad 0.5315722576 DErad 0.0501244616 Plx 11.45 PmRA -71.84
PmDE -204.62 E RArad 0.96 E DErad 0.91 E Plx 1.08
E pmRA 1.29 E pmDE 1.12 Hpmag 8.6758 E Hpmag 0.0017
SHp 0.012 VA 0 BV 0.531 E BV 0.002
VI 0.6