stampa
Login

A workbench to forge your own double stars?
Create your account here!


Search



Actions
Advanced Search
Go to Simbad
New report
New measure
Login


Computed Lists
Populars
Latest Populars
Doubles in session


Current system
07171+2641
CHR 218
HD 56176


Nearby doubles
12' : 07170+2653
BUP 100AB

26' : 07173+2707
BRT 151

29' : 07163+2709
BEU 10

50' : 07151+2600
AG 332AB

51' : 07170+2732
GRV 732

52' : 07189+2556
HDS1017

56' : 07151+2553
BU 1023

62' : 07125+2634
OCC 237

66' : 07128+2713
STF1037AB

71' : 07123+2713
NSN 573

72' : 07186+2533
GRV 733

74' : 07116+2649
UC 1547

79' : 07217+2555
NSN 30

80' : 07201+2534
TDS4715

84' : 07195+2758
HDS1025AB

86' : 07185+2518
HDS1012

89' : 07138+2758
UC 1552

97' : 07115+2541
TDS4564

100' : 07193+2816
HDO 102AB

100' : 07097+2631
OCC 699

102' : 07246+2641
HJ 420

102' : 07229+2514
HJ 418

105' : 07248+2638
HJ 421

105' : 07110+2747
TDS4557

107' : 07215+2514
A 2736AB

107' : 07233+2536
KPP 35



Selections
Full WDS
Binocular doubles
Binary Systems
Triple Systems
Quadruple Systems
Multiple Systems
Neglected List I
Neglected List II
Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

07171+2641 CHR 218 (HD 56176)

 
 
07h 17m 03.36s +26° 41' 23.3" P.A. 235.00 sep 0.2 mag 7.00,7.70 Sp G7IV dist. 77.22 pc (251.89 l.y.)
 
 
Coord 2000 07171+2641 Discov num CHR 218 Comp Coord arcsec 2000 07 17 03.36 +26 41 23.3
Date first 1991 Date last 2016 Obs 17
Pa first 231 Pa last 235.3 P.A. Now (θ) 235.3°
Sep first 0.2 Sep last 0.183 Sep. Now (ρ) 0.183"
Mag pri 7.00 Mag sec 7.70 delta mag (ΔM) 0.7 Spectral class G7IV (yellow)
Pri motion ra +057 Sec motion ra
Pri motion dec -132 Sec motion dec
Notes N (See Notes)
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 56176 Constellation Gemini SAO 79241 HIP 35253
Tycho2 1917-02488-1 Gaia DR2 871403994836578816 HD 56176 GC 9656
BD BD+26 1508 Distance 77.22 Distance ly 251.89
 
 
WDS 07171+2641 CHR 218 (HD 56176) : NOTES
 
 
discov_num notes refcode
CHR 218 First detected as an occultation binary by Schmidtke et al. Smk1989
 
 
REFERENCES
 
 
refcode metd author reference
Smk1989 O j Schmidtke, P.C., Africano, J.L. & Quigley, R. 1989AJ.....97..909S
Smk1989 AJ 97, 909, 1989
 
 
DISCOVERER
 
 
idgroup discov author
1 CHR Center for High Ang. Res. Astronomy (speckle interferometry systems)
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
07171+2641 CHR 218 1997 5 247 0.1 7.00 7.70 G7IV N D 071703.36+264123.3
07171+2641 CHR 218 2007 6 212 0.1 7.00 7.70 G7IV N D 071703.36+264123.3
07171+2641 CHR 218 2008 10 228 0.1 7.00 7.70 G7IV N D 071703.36+264123.3
07171+2641 CHR 218 2012 12 227 0.2 7.00 7.70 G7IV N 071703.36+264123.3
07171+2641 CHR 218 2016 14 235 0.2 7.00 7.70 G7IV N 071703.36+264123.3

If you need more information about this double, apply for a data request form to the WDS.

 
 
WDS 07171+2641 CHR 218 (HD 56176) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 07171+2641 CHR 218 (HD 56176) : MEASURES
 
 
No records found.

 
 
WDS 07171+2641 (HD 56176) : VIRTUAL EYEPIECE
 
 

07171+2641 CHR 218A mag 7 Sp G7IV 07171+2641 CHR 218B sep 0.2 P.A. 232.20 mag 7.7 virtual eyepiece
Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 07171+2641 (HD 56176) : ALADIN DSS IMAGE @ 07h 17m 03.36s +26° 41' 23.3"
 
 
 
 
WDS 07171+2641 CHR 218 (HD 56176) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

07171+2641 CHR 218 distance=0' 07170+2653 BUP 100AB distance=12' 07170+2653 BUP 100AC distance=12' 07173+2707 BRT 151 distance=26' 07163+2709 BEU 10 distance=29' 07151+2600 AG 332AB distance=50' 07170+2732 GRV 732 distance=51' 07189+2556 HDS1017 distance=52' 07151+2553 BU 1023 distance=56' 07125+2634 OCC 237 distance=62' 07128+2713 STF1037AB distance=66' 07128+2713 STT 166AC distance=66' 07128+2713 STT 166BC distance=66' 07123+2713 NSN 573 distance=71' 07186+2533 GRV 733 distance=72' 07116+2649 UC 1547 distance=74' 07217+2555 NSN 30 distance=79' 07201+2534 TDS4715 distance=80' 07195+2758 HDS1025AB distance=84' 07195+2758 HDS1025AC distance=84' 07185+2518 HDS1012 distance=86' 07138+2758 UC 1552 distance=89' 07115+2541 TDS4564 distance=97' 07193+2816 HDO 102AB distance=100' 07193+2816 SIN 27AC distance=100' 07193+2816 SIN 27AD distance=100' 07193+2816 SIN 27AE distance=100' 07097+2631 OCC 699 distance=100' 07246+2641 HJ 420 distance=102' 07229+2514 HJ 418 distance=102' 07248+2638 HJ 421 distance=105' 07110+2747 TDS4557 distance=105' 07215+2514 A 2736AB distance=107' 07215+2514 A 2736AC distance=107' 07233+2536 KPP 35 distance=107' 07170+2454 POU2633 distance=108' 07103+2540 GRV 729 distance=109' 07139+2501 BUP 98AB distance=110' 07139+2501 BUP 98AC distance=110' 07157+2453 POU2613 distance=111' 07164+2451 POU2624 distance=111' 07116+2804 LDS3727 distance=111' 07147+2453 HO 343 distance=113' 07211+2503 OCC 195 distance=114' 07185+2447 POU2666 distance=116' 07096+2544 HO 519AB distance=116' 07096+2544 STTA 83AC distance=116' 07173+2445 POU2640 distance=117' 07138+2830 STT 520 distance=117' 07144+2449 POU2588 distance=119' 07191+2446 POU2676 distance=119' grafico limitrofi
Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.
Show name coord_2000 discov# comp pa sep dist(')
Show 07171+2641 CHR 218 235 0.2
Show 07170+2653 BUP 100 AB 176 7.6 12
Show 07170+2653 BUP 100 AC 139 27.9 12
Show 07173+2707 BRT 151 56 3.1 26
Show 07163+2709 BEU 10 155 0.1 29
Show 07151+2600 AG 332 AB 353 27.3 50
Show 07170+2732 GRV 732 304 27.0 51
Show 07189+2556 HDS1017 248 0.5 52
Show 07151+2553 BU 1023 307 0.5 56
Show 07125+2634 OCC 237 -1 0.1 62
Show 07128+2713 STF1037 AB 302 0.8 66
Show 07128+2713 STT 166 AC 77 13.8 66
Show 07128+2713 STT 166 BC 71 14.2 66
Show 07123+2713 NSN 573 75 9.1 71
Show 07186+2533 GRV 733 19 55.2 72
Show 07116+2649 UC 1547 186 73.0 74
Show 07217+2555 NSN 30 88 4.8 79
Show 07201+2534 TDS4715 111 0.5 80
Show 07195+2758 HDS1025 AB 107 3.1 84
Show 07195+2758 HDS1025 AC 336 12.1 84
Show 07185+2518 HDS1012 184 12.4 86
Show 07138+2758 UC 1552 249 30.7 89
Show 07115+2541 TDS4564 267 0.6 97
Show 07193+2816 HDO 102 AB 341 15.2 100
Show 07193+2816 SIN 27 AC 57 120.9 100
Show 07193+2816 SIN 27 AD 22 132.2 100
Show 07193+2816 SIN 27 AE 65 144.8 100
Show 07097+2631 OCC 699 -1 0.1 100
Show 07246+2641 HJ 420 9 12.1 102
Show 07229+2514 HJ 418 288 14.3 102
Show 07248+2638 HJ 421 191 24.2 105
Show 07110+2747 TDS4557 122 0.5 105
Show 07215+2514 A 2736 AB 75 1.6 107
Show 07215+2514 A 2736 AC 146 9.8 107
Show 07233+2536 KPP 35 36 5.2 107
Show 07170+2454 POU2633 132 12.3 108
Show 07103+2540 GRV 729 74 9.6 109
Show 07139+2501 BUP 98 AB 120 73.0 110
Show 07139+2501 BUP 98 AC 247 183.4 110
Show 07157+2453 POU2613 95 11.2 111
Show 07164+2451 POU2624 273 13.7 111
Show 07116+2804 LDS3727 77 82.7 111
Show 07147+2453 HO 343 280 30.5 113
Show 07211+2503 OCC 195 -1 0.1 114
Show 07185+2447 POU2666 213 14.9 116
Show 07096+2544 HO 519 AB 73 32.5 116
Show 07096+2544 STTA 83 AC 79 123.3 116
Show 07173+2445 POU2640 264 13.3 117
Show 07138+2830 STT 520 30 0.6 117
Show 07144+2449 POU2588 358 15.1 119
Show 07191+2446 POU2676 135 13.4 119

 
 
WDS 07171+2641 : COMPONENTS
 
 
  A
B pa=232.2°
sep=0.17"
 
 
07171+2641 A
 
 
Componente originario normalizzato AB Name HD 56176 Coord arcsec 2000 071703.36+264123.3 Mag 7
Spectral class G7IV (yellow) PmRA 57.00 PmDE -132.0 SAO 79241
HIP 35253 Tycho2 1917-02488-1 HD 56176 GC 9656
BD BD+26 1508
Tycho2
Tycho2 1917-02488-1 Pflag RAmdeg 109.26416911 DEmdeg 26.68948773
PmRA 57.0 PmDE -130.2 E RAmdeg 4 E DEmdeg 5
E pmRA 0.8 E pmDE 0.8 EpRAm 1991.42 EpDEm 1990.99
Num 23 Q RAmdeg 1.2 Q DEmdeg 1.0 Q pmRA 1.4
Q pmDE 1.1 BTmag 7.511 E BTmag 0.016 VTmag 6.489
E VTmag 0.010 Prox 999 TYC T HIP 35253
CCDM AB RAdeg 109.26402500 DEdeg 26.68978778 EpRA 1990 1.86
EpDE 1990 1.70 E RAdeg 4.2 E DEdeg 4.8 Posflg P
Corr 0.1
SAO
SAO 79241 DelFlag RA1950 PmRA1950 0.0034
DE1950 PmDE1950 -0.135 Vmag 6.5 SpType G5
Double code Source 70 CatNum 9656 DM BD+26 1508
DMcomp BDsup HD 56176 M HD 0
GC 9656 RA1950rad 1.89350517 DE1950rad 0.46742196 PmRA2000 0.0033
PmDE2000 -0.133
Hipparcos
Catalog H HIP 35253 Proxy H RAhms 07 17 03.36
DEdms +26 41 23.3 Vmag 6.38 VarFlag R Vmag H
RAdeg 109.264 DEdeg 26.6898 AstroRef * Plx 11
CCDM 07171+2641 N CCDM H Nsys 1 Ncomp 2
MultFlag C Source S Qual A M HIP AB
Theta 231 Rho 0.172 HD 56176 BD BD+26 1508
CD CP Dm number +26 1508 VIred 0.96
SpType G7IV R SpType Coord arcsec 2000 071703.36+264123.3
Hipparcos 2
HIP 35253 Sn 55 So 3 Nc 2
RArad 1.9070168273 DErad 0.4658249606 Plx 12.95 PmRA 57.78
PmDE -131.58 E RArad 0.64 E DErad 0.47 E Plx 0.74
E pmRA 0.88 E pmDE 0.54 Hpmag 6.54 E Hpmag 0.0008
SHp 0.007 VA 0 BV 0.883 E BV 0.002
VI 0.96
CCDM
Ccdm 07171+2641 RComp Comp A Note1
Note2 Discov num DRAs -2.60 DDEs 22.2
R dRAs 82 Year Theta Rho
Obs 2 Vmag 7.0 Sp G7 PmNote *
PmRA 57 PmDE -132 Dm number +26 1508 Cat1 BD
Name2 +26 792 Cat2 AGK2/3 HD 56176 M HD
ADS BDS M ADS BDS N IDS IDS
HIC 35253
 
 
07171+2641 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 071703.35+264123.2 Mag 7.7 Calc delta mag 0.7
Calc coord yes
CCDM
Ccdm 07171+2641 RComp Comp B Note1
Note2 Discov num HDS DRAs -2.60 DDEs 22.1
R dRAs 82 Year 1991 Theta 231 Rho 0.2
Obs 1 Vmag 7.7 Sp PmNote *
PmRA 57 PmDE -132 Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS
HIC 35253