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Doubles in session


Current system
04185+2817
HAT 4 AB


Nearby doubles
4' : 04187+2819
SKN 1AB

6' : 04188+2820
KSA 104AB

6' : 04188+2821
KSA 10

6' : 04189+2820
PAD 26

8' : 04190+2812
KSA 11AB

8' : 04190+2820
KSA 12

10' : 04190+2823
KSA 13

15' : 04186+2831
KSA 9

15' : 04195+2808
DAE 23AB

16' : 04194+2826
LEI 11

16' : 04192+2830
LEI 10

16' : 04178+2830
KSA 8

21' : 04176+2833
SAR 2AB

29' : 04165+2808
KSA 7AB

31' : 04197+2750
LEI 12

38' : 04157+2819
KSA 130

46' : 04220+2818
ITO 21AB

47' : 04220+2826
ISM 1AB

48' : 04221+2826
KSA 105AB

48' : 04192+2729
KPP2041

50' : 04148+2813
KSA 5AB

55' : 04148+2753
GHE 3

55' : 04144+2806
BRC 2AB

58' : 04142+2813
HAT 3AB

59' : 04229+2824
STF 529AB

59' : 04192+2914
TVB 69



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.

04185+2817 HAT 4 AB

 
 
04h 18m 31.13s +28° 16' 30.1" P.A. 11.00 sep 30.0 mag 15.29,15.34 Sp K6V+M2V
 
 
Coord 2000 04185+2817 Discov num HAT   4 Comp AB Coord arcsec 2000 04 18 31.13 +28 16 30.1
Date first 1955 Date last 2015 Obs 12
Pa first 12 Pa last 11.4 P.A. Now (θ) 11.4°
Sep first 30.2 Sep last 30.023 Sep. Now (ρ) 30.023"
Mag pri 15.29 Mag sec 15.34 delta mag (ΔM) 0.05 Spectral class K6V+M2V (yellow-orange/red)
Pri motion ra -017 Sec motion ra +008
Pri motion dec -066 Sec motion dec -024
Notes N (See Notes)
rPM=0.717
Nature of this double is uncertain.
 
 
04185+2817 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 04 18 31 +28 16 30 GHE 5 Aa,Ab 2018 20 177 0.6 10.10 10.40 0.30
Show 04 18 31 +28 16 30 HAT 4 AB 2015 12 11 30.0 15.29 15.34 0.05 <===
Show 04 18 32 +28 16 59 LEI 9 Ba,Bb 2018 9 89 0.4 9.50 11.30 1.80
Quadruple system
2 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Taurus Gaia DR2 164507353496637952
 
 
WDS 04185+2817 HAT 4 AB : NOTES
 
 
discov_num notes refcode
HAT 4 AB: Additional notes may be found in Herbig (1962). Her1962
 
 
REFERENCES
 
 
refcode metd author reference
Her1962 Pa - Herbig, G.H. 1962AdA&A...1...47H
Her1962 Advances Astron. Astrophys. 1, 47, 1962
Her1962 (Exact dates, telescopes, and techniques not given. Default date = decade of
Her1962 publication added.)
 
 
DISCOVERER
 
 
idgroup discov author
1 GHE Ghez, A.M., Neugebauer, G., Gorham, P.W., Haniff, C.A., Kulkarni, S.R., Matthews,
1 GHE K., Koresko, C., & Beckwith, S.
14 GHE Ghez, A.M., Duchene, G., Matthews, K., Hornstein, S.D., Tanner, A., Larkin, J.,
14 GHE Morris, M., Becklin, E.E., et al.
15 GHE Ghez, A.M., Salim, S., Hornstein,S.D., Tanner, A., Lu, J.R., Morris, M.,
15 GHE Becklin, E.E., & Duchene, G.
16 GHE Boehle, A., Ghez, A.M., Schodel, R., Meyer, L., Yelda, S., Albers, S.,
16 GHE Martinez, G.D., Becklin, E.E., Do, T., Lu, J.R., Matthews, K., Morris, M., et al.
17 HAT Hartigan, P., Strom, K., & Strom, S.
20 LEI Leinert, Ch., Jahreiss, H., & Haas, M.
23 LEI Leinert, Ch., Haas, M., Allard, F., Wehrse, W., McCarthy, D.W., Jahreiss, H., &
23 LEI Perrier, Ch.
26 LEI Leinert, Ch., Zinnecker, H., Weitzel, N., Christou, J., Ridgway, S.T.,
26 LEI Jameson, R., Haas, M., & Lenzen, R.
33 LEI Leinert, Ch., Jahreiss, H., Woitas, J., Zucker, S., Mazeh, T., Eckart, A., &
33 LEI Koehler, R.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
04185+2817 HAT 4 AB 1991 2 11 29.7 15.29 14.55 K6V+M2V N 041831.13+281630.1
04185+2817 HAT 4 AB 2007 7 12 30.1 15.30 14.60 K6V M2V N 041831.13+281630.1
04185+2817 HAT 4 AB 2015 9 11 30.0 15.29 15.34 K6V+M2V N 041831.13+281630.1

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

 
 
WDS 04185+2817 HAT 4 AB : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 04185+2817 HAT 4 AB : MEASURES
 
 
No records found.

 
 
WDS 04185+2817 : VIRTUAL EYEPIECE
 
 

04185+2817 HAT 4A mag 15.29 Sp K6V 04185+2817 GHE 5Ab sep 0.6 P.A. 177.50 mag 10.4 Sp M3.5 04185+2817 LEI 9B sep 29.9 P.A. 11.70 mag 9.5 Sp M2V 04185+2817 LEI 9Bb sep 30.0 P.A. 12.40 mag 11.3 virtual eyepiece
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Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 04185+2817 : ALADIN DSS IMAGE @ 04h 18m 31.13s +28° 16' 30.1"
 
 
 
 
WDS 04185+2817 HAT 4 AB : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

04185+2817 HAT 4AB distance=0' 04185+2817 LEI 9Ba,Bb distance=1' 04187+2819 SKW 2Aa,Ab distance=4' 04187+2819 SKN 1AB distance=4' 04188+2820 KSA 104AB distance=6' 04188+2820 ITO 19AC distance=6' 04188+2820 ITO 19AD distance=6' 04188+2821 KSA 10 distance=6' 04189+2820 PAD 26 distance=6' 04190+2812 KSA 11AB distance=8' 04190+2812 DCH 48AC distance=8' 04190+2820 KSA 12 distance=8' 04190+2823 KSA 13 distance=10' 04185+2828 GHE 4EI distance=11' 04186+2831 KSA 9 distance=15' 04195+2808 DAE 23AB distance=15' 04195+2808 DAE 23AC distance=15' 04195+2808 DAE 23AD distance=15' 04195+2808 DAE 23AE distance=15' 04194+2826 LEI 11 distance=16' 04192+2830 LEI 10 distance=16' 04178+2830 KSA 8 distance=16' 04176+2833 SAR 2AB distance=21' 04176+2833 SAR 2A,Ca distance=21' 04176+2833 SAR 2A,Cb distance=21' 04176+2833 KSA 103Aa,Ab distance=21' 04165+2808 KSA 7AB distance=29' 04165+2808 ITO 18AC distance=29' 04197+2750 LEI 12 distance=31' 04157+2819 KSA 130 distance=38' 04163+2752 KSA 6AC distance=38' 04220+2818 ITO 21AB distance=46' 04220+2818 ITO 21AC distance=46' 04220+2818 ITO 21AD distance=46' 04220+2826 ISM 1AB distance=47' 04220+2826 ITO 22AC distance=47' 04221+2826 KSA 105AB distance=48' 04221+2826 DAE 24AC distance=48' 04192+2729 KPP2041 distance=48' 04148+2813 GHE 2Aa,Ab distance=50' 04148+2813 KSA 5AB distance=50' 04193+2906 ITO 20FI distance=51' 04193+2906 ITO 20FJ distance=51' 04148+2753 GHE 3 distance=55' 04144+2806 KSA 4BC distance=55' 04144+2806 BRC 2AB distance=55' 04142+2813 KSA 3BC distance=57' 04142+2813 GHE 1Aa,Ab distance=58' 04142+2813 DCH 101Aa,Ac distance=58' 04142+2813 HAT 3AB distance=58' 04142+2813 SKF1027AD distance=58' 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 04185+2817 GHE 5 Aa,Ab 177 0.6
Show 04185+2817 HAT 4 AB 11 30.0
Show 04185+2817 LEI 9 Ba,Bb 89 0.4 1
Show 04187+2819 SKW 2 Aa,Ab 61 0.1 4
Show 04187+2819 SKN 1 AB 23 4.0 4
Show 04188+2820 KSA 104 AB 121 0.0 6
Show 04188+2820 ITO 19 AC 234 5.7 6
Show 04188+2820 ITO 19 AD 138 5.3 6
Show 04188+2821 KSA 10 115 23.1 6
Show 04189+2820 PAD 26 111 0.2 6
Show 04190+2812 KSA 11 AB 28 25.7 8
Show 04190+2812 DCH 48 AC 248 28.8 8
Show 04190+2820 KSA 12 34 26.7 8
Show 04190+2823 KSA 13 48 13.3 10
Show 04185+2828 GHE 4 EI 142 0.3 11
Show 04186+2831 KSA 9 106 17.3 15
Show 04195+2808 DAE 23 AB 228 2.0 15
Show 04195+2808 DAE 23 AC 93 6.6 15
Show 04195+2808 DAE 23 AD 244 6.7 15
Show 04195+2808 DAE 23 AE 227 9.3 15
Show 04194+2826 LEI 11 172 10.0 16
Show 04192+2830 LEI 10 63 0.7 16
Show 04178+2830 KSA 8 137 27.7 16
Show 04176+2833 SAR 2 AB 290 18.2 21
Show 04176+2833 SAR 2 A,Ca 121 14.6 21
Show 04176+2833 SAR 2 A,Cb 118 14.3 21
Show 04176+2833 KSA 103 Aa,Ab 61 0.0 21
Show 04165+2808 KSA 7 AB 155 8.5 29
Show 04165+2808 ITO 18 AC 111 8.8 29
Show 04197+2750 LEI 12 24 1.0 31
Show 04157+2819 KSA 130 89 2.6 38
Show 04163+2752 KSA 6 AC 219 27.9 38
Show 04220+2818 ITO 21 AB 56 5.7 46
Show 04220+2818 ITO 21 AC 152 8.1 46
Show 04220+2818 ITO 21 AD 14 6.5 46
Show 04220+2826 ISM 1 AB 158 0.0 47
Show 04220+2826 ITO 22 AC 121 10.6 47
Show 04221+2826 KSA 105 AB 114 0.0 48
Show 04221+2826 DAE 24 AC 315 11.0 48
Show 04192+2729 KPP2041 41 16.3 48
Show 04148+2813 GHE 2 Aa,Ab 253 0.1 50
Show 04148+2813 KSA 5 AB 251 26.1 50
Show 04193+2906 ITO 20 FI 261 3.0 51
Show 04193+2906 ITO 20 FJ 8 5.5 51
Show 04148+2753 GHE 3 69 0.5 55
Show 04144+2806 KSA 4 BC 280 24.8 55
Show 04144+2806 BRC 2 AB 154 4.0 55
Show 04142+2813 KSA 3 BC 92 26.2 57
Show 04142+2813 GHE 1 Aa,Ab 186 0.0 58
Show 04142+2813 DCH 101 Aa,Ac 159 0.2 58
Show 04142+2813 HAT 3 AB 15 38.3 58

 
 
WDS 04185+2817 : COMPONENTS
 
 
  A Ab B
Ab pa=177.5°
sep=0.59"
 
B pa=11.7°
sep=29.92"
pa=11.4°
sep=30.49"
 
Bb pa=12.4°
sep=30.00"
pa=12.1°
sep=30.57"
pa=89.2°
sep=0.34"
 
 
04185+2817 A
 
 
Coord arcsec 2000 041831.13+281630.1 Mag 15.29 Spectral class K6V (yellow-orange) PmRA -17.00
PmDE -66.0
 
 
04185+2817 Ab
 
 
Coord arcsec 2000 041831.13+281629.5 Mag 10.4 Spectral class M3.5 (red) Calc delta mag 0.3
Calc coord yes
 
 
04185+2817 B
 
 
Coord arcsec 2000 041831.59+281659.4 Coord calc 041831.53+281659.5 Mag 9.5 Mag composta 15.34
Spectral class M2V (red) PmRA 4.00 PmDE -33.0 Calc delta mag 0.6
 
 
04185+2817 Bb
 
 
Coord arcsec 2000 041831.62+281659.4 Mag 11.3 Calc delta mag 1.2 Calc coord yes