Star • GDR1 5209082124959823488

Cluster
eta Cha
Proposed Clusters
Alternate Names
TYC 9402 0921 1
[MHL2005] 1
[GRS2008] 01
V* EG Cha
2MASS J08365623-7856454
RECX 1
GSC 9402-0921
GDR1 5209082124959823488
GDR2 5209082129256747008
CP-78 367
WISEA J083656.11-785645.3
eta Cha 1
2MASS 08365623-7856454
EG Cha
SIP Output
Aladin
08 36 56.060 -78 56 45.23
FoV: 3'
+–
×
×
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Fiducial Data

Parameter
Value
Error
Unit
Reference
bin_sep
0.2
 
arcsec
bouwman2006
cluster_name
eta Cha
 
[char]
messina2011
ra
08 36 56.0599
 
h m s
gaiacollaboration2016
dec
-78 56 45.2316
 
d m s
gaiacollaboration2016
ra_deg
129.23358291
 
deg
gaiacollaboration2016
dec_deg
-78.94589766
 
deg
gaiacollaboration2016
pm_ra
-29.637
0.246
mas/yr
gaiacollaboration2018
pm_dec
27.574
0.219
mas/yr
gaiacollaboration2018
rv
17.58
1.37
km/s
gaiacollaboration2018
plx
9.9836
0.1262
mas
gaiacollaboration2018
st_dist
100.1643
1.2661
pc
gaiacollaboration2018
spt
K4
 
[char]
messina2011
spt_num
54.0
 
[decimal allowed]
messina2011
spt_lit
K4V
 
[char]
messina2011
H_alpha
-1.61
 
0.1nm
riviere-marichalar2015
H_alpha_tenp
162.0
 
km/s
riviere-marichalar2015
LiI_6708
0.511
0.02
0.1nm
mentuch2008
vsini
20.9
 
km/s
jayawardhana2006
rot_period
4.5
0.04
days
messina2011
Av
0.286
0.31
mag
YSOPY

Non Fiducial Data

Membership
cluster_name ([char])
Value Error Ref.
eta Cha mentuch2008
eta Cha jayawardhana2006
unknown gaiacollaboration2016
mem_num ([integer])
Value Error Ref.
0 gaiacollaboration2016
Motion
pm_ra (mas/yr)
Value Error Ref.
-26.061 1.943 gaiacollaboration2016
pm_dec (mas/yr)
Value Error Ref.
24.998 1.291 gaiacollaboration2016
rv (km/s)
Value Error Ref.
18.3 1.0 riviere-marichalar2015
18.4 torres2006
18.0 2.0 covino1997
plx (mas)
Value Error Ref.
9.78 0.679 gaiacollaboration2016
st_dist (pc)
Value Error Ref.
102.25 7.099 gaiacollaboration2016
ObsProp
spt ([char])
Value Error Ref.
K6 luhman2004
K5 lawson2001
K4 torres2006
K5 skiffBMK
K4 covino1997
K4 mamajek1999
spt_num ([decimal allowed])
Value Error Ref.
56.0 luhman2004
55.0 lawson2001
54.0 torres2006
55.0 skiffBMK
54.0 covino1997
54.0 mamajek1999
spt_lit ([char])
Value Error Ref.
K6 luhman2004
K5 lawson2001
K4Ve torres2006
K5IVe skiffBMK
K4 covino1997
K4 mamajek1999
H_alpha (0.1nm)
Value Error Ref.
-1.2 0.36 jayawardhana2006
-1.0 torres2006
-1.1 covino1997
-1.4 mamajek1999
H_alpha_tenp (km/s)
Value Error Ref.
103.0 14.0 jayawardhana2006
LiI_6708 (0.1nm)
Value Error Ref.
0.5 torres2006
0.52 0.015 covino1997
0.5 mamajek1999
vsini (km/s)
Value Error Ref.
21.7 2.2 torres2006
13.0 3.0 covino1997
rot_period (days)
Value Error Ref.
2.2 lawson2001
Derived Stellar Properties
Teff (K)
Value Error Ref.
4100.0 riviere-marichalar2015
4107.0 15.0 mentuch2008
4205.0 luhman2004
4315.0 lawson2001
4364.6 169.685 gaiacollaboration2018
log_Teff (log K)
Value Error Ref.
3.61 riviere-marichalar2015
3.61 0.01 mentuch2008
3.62 luhman2004
3.63 lawson2001
L_star (Lsun)
Value Error Ref.
0.96 0.52 riviere-marichalar2015
1.0 luhman2004
0.912 lawson2001
0.98 0.0145 gaiacollaboration2018
log_L_star (log Lsun)
Value Error Ref.
-0.0177 0.0096 riviere-marichalar2015
0.0 luhman2004
-0.04001 lawson2001
R_star (Rsun)
Value Error Ref.
1.71 lawson2001
1.73 0.13 gaiacollaboration2018
M_star (Msun)
Value Error Ref.
0.62 lawson2001
1.0 mamajek1999
log_M_star (log Msun)
Value Error Ref.
-0.2076 lawson2001
0.0 mamajek1999
age_star (Myr)
Value Error Ref.
1.0 lawson2001
6.0 mamajek1999
log_age_star (log yr)
Value Error Ref.
6.0 lawson2001
6.78 mamajek1999
Optical Photometry
V (mag)
Value Error Ref.
10.437 0.039 henden2016
gaia_g (mag)
Value Error Ref.
9.899 gaiacollaboration2016
Mid-Infrared Photometry
L (mag)
Value Error Ref.
6.97 lyo2003
S_3p6 (mag)
Value Error Ref.
7.17 0.02 megeath2005
S_4p5 (mag)
Value Error Ref.
7.2 0.02 megeath2005
S_5p8 (mag)
Value Error Ref.
7.16 0.01 megeath2005
S_8 (mag)
Value Error Ref.
7.11 0.02 megeath2005
Coordinates
ra (h m s)
Value Error Ref.
08 36 56.235 cutri2003
08 36 56.117 wright2010
08 36 56.2348 messina2011
08 36 56.2348 riviere-marichalar2015
08 36 56.2348 sicilia-aguilar2009
08 36 56.2348 mentuch2008
08 36 56.2348 bouwman2006
08 36 56.2348 gautier2008
08 36 56.2348 jayawardhana2006
08 36 56.2348 haisch2005
08 36 56.23 luhman2004
08 36 56.2348 megeath2005
08 36 56.2348 lyo2003
08 36 56.2348 lawson2001
08 36 56.2 torres2006
08 36 56.210 skiffBMK
08 36 56.111 henden2016
08 36 56.2348 covino1997
08 36 56.2 mamajek1999
08 36 56.055 gaiacollaboration2018
08 36 56.060 gaiacollaboration2016
dec (d m s)
Value Error Ref.
-78 56 45.49 cutri2003
-78 56 45.31 wright2010
-78 56 45.664 messina2011
-78 56 45.664 riviere-marichalar2015
-78 56 45.664 sicilia-aguilar2009
-78 56 45.664 mentuch2008
-78 56 45.664 bouwman2006
-78 56 45.664 gautier2008
-78 56 45.664 jayawardhana2006
-78 56 45.664 haisch2005
-78 56 45.5 luhman2004
-78 56 45.664 megeath2005
-78 56 45.664 lyo2003
-78 56 45.664 lawson2001
-78 56 46 torres2006
-78 56 45.71 skiffBMK
-78 56 44.94 henden2016
-78 56 45.664 covino1997
-78 56 45.7 mamajek1999
-78 56 45.22 gaiacollaboration2018
-78 56 45.23 gaiacollaboration2016
ra_deg (deg)
Value Error Ref.
129.234314 60.0 cutri2003
129.2338229 39.6752 wright2010
129.23431167 messina2011
129.23431167 riviere-marichalar2015
129.23431167 sicilia-aguilar2009
129.23431167 mentuch2008
129.23431167 bouwman2006
129.23431167 gautier2008
129.23431167 jayawardhana2006
129.23431167 haisch2005
129.23429167 luhman2004
129.23431167 megeath2005
129.23431167 lyo2003
129.23431167 lawson2001
129.23416667 torres2006
129.23421 skiffBMK
129.233794 74.0 henden2016
129.23431167 covino1997
129.23416667 mamajek1999
129.23356099 0.1189 gaiacollaboration2018
129.23358291 0.425 gaiacollaboration2016
dec_deg (deg)
Value Error Ref.
-78.945969 90.0 cutri2003
-78.9459186 38.5954 wright2010
-78.94601778 messina2011
-78.94601778 riviere-marichalar2015
-78.94601778 sicilia-aguilar2009
-78.94601778 mentuch2008
-78.94601778 bouwman2006
-78.94601778 gautier2008
-78.94601778 jayawardhana2006
-78.94601778 haisch2005
-78.94597222 luhman2004
-78.94601778 megeath2005
-78.94601778 lyo2003
-78.94601778 lawson2001
-78.94611111 torres2006
-78.94603 skiffBMK
-78.945817 126.0 henden2016
-78.94601778 covino1997
-78.94602778 mamajek1999
-78.94589378 0.1216 gaiacollaboration2018
-78.94589766 0.475 gaiacollaboration2016

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