Star • GDR1 5209038419373954432

Cluster
eta Cha
Proposed Clusters
Alternate Names
2MASS J08423879-7854427
[MHL2005] 6
RECX 6a
EL Cha
[GRS2008] 06
WISEA J084238.68-785442.4
eta Cha 6
V* EL Cha
GSC 9403-0288
2MASS 08423879-7854427
GDR2 5209038423669475712
RECX 6
GDR1 5209038419373954432
SIP Output
Aladin
08 42 38.632 -78 54 42.33
FoV: 3'
+–
×
×
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Fiducial Data

Parameter
Value
Error
Unit
Reference
cluster_name
eta Cha
 
[char]
messina2011
ra
08 42 38.632
 
h m s
gaiacollaboration2016
dec
-78 54 42.3322
 
d m s
gaiacollaboration2016
ra_deg
130.66096654
 
deg
gaiacollaboration2016
dec_deg
-78.91175894
 
deg
gaiacollaboration2016
pm_ra
-29.164
0.074
mas/yr
gaiacollaboration2018
pm_dec
27.01
0.082
mas/yr
gaiacollaboration2018
rv
18.1
1.5
km/s
riviere-marichalar2015
plx
10.1917
0.0419
mas
gaiacollaboration2018
st_dist
98.1191
0.4034
pc
gaiacollaboration2018
spt
M7
 
[char]
messina2011
spt_num
67.0
 
[decimal allowed]
messina2011
spt_lit
M7
 
[char]
messina2011
H_alpha
-6.7
 
0.1nm
riviere-marichalar2015
H_alpha_tenp
238.0
 
km/s
riviere-marichalar2015
LiI_6708
0.489
0.022
0.1nm
mentuch2008
vsini
20.89
1.05
km/s
scholz2007
rot_period
1.84
 
days
lawson2001
Av
0.0
 
mag
YSOPY
Teff
2650.0
54.7
K
YSOPY

Non Fiducial Data

Membership
cluster_name ([char])
Value Error Ref.
unknown gaiacollaboration2016
eta Cha scholz2007
eta Cha mentuch2008
eta Cha jayawardhana2006
mem_num ([integer])
Value Error Ref.
0 gaiacollaboration2016
ObsProp
spt ([char])
Value Error Ref.
M3 luhman2004
M3 lawson2001
M3 skiffBMK
M2 mamajek1999
spt_num ([decimal allowed])
Value Error Ref.
63.0 luhman2004
63.0 lawson2001
63.0 skiffBMK
62.0 mamajek1999
spt_lit ([char])
Value Error Ref.
M3 luhman2004
M3 lawson2001
M3Ve skiffBMK
M2 mamajek1999
H_alpha (0.1nm)
Value Error Ref.
-5.04 0.42 scholz2007
-5.0 0.45 jayawardhana2006
-3.6 lawson2004
-4.7 mamajek1999
H_alpha_tenp (km/s)
Value Error Ref.
145.0 27.0 jayawardhana2006
155.0 lawson2004
LiI_6708 (0.1nm)
Value Error Ref.
0.5 mamajek1999
vsini (km/s)
Value Error Ref.
20.9 jayawardhana2006
Derived Stellar Properties
Teff (K)
Value Error Ref.
3300.0 riviere-marichalar2015
3492.0 11.0 mentuch2008
3415.0 luhman2004
3508.0 lawson2001
3525.5 309.005 gaiacollaboration2018
log_Teff (log K)
Value Error Ref.
3.52 riviere-marichalar2015
3.54 0.01 mentuch2008
3.53 luhman2004
3.55 lawson2001
L_star (Lsun)
Value Error Ref.
0.11 0.06 riviere-marichalar2015
0.11 luhman2004
0.11 lawson2001
0.103 0.001 gaiacollaboration2018
log_L_star (log Lsun)
Value Error Ref.
-0.9586 0.5229 riviere-marichalar2015
-0.9586 luhman2004
-0.9586 lawson2001
R_star (Rsun)
Value Error Ref.
0.9 lawson2001
0.86 0.145 gaiacollaboration2018
M_star (Msun)
Value Error Ref.
0.33 lawson2001
0.4 mamajek1999
log_M_star (log Msun)
Value Error Ref.
-0.4815 lawson2001
-0.398 mamajek1999
age_star (Myr)
Value Error Ref.
5.0 lawson2001
4.0 mamajek1999
log_age_star (log yr)
Value Error Ref.
6.7 lawson2001
6.6 mamajek1999
X-ray
xray_flag ([boolean])
Value Error Ref.
True mamajek1999
Lx (erg/s)
Value Error Ref.
3.1622776601699997e+29 mamajek1999
log_Lx (log erg/s)
Value Error Ref.
29.5 mamajek1999
Optical Photometry
V (mag)
Value Error Ref.
14.111 0.07 henden2016
gaia_g (mag)
Value Error Ref.
12.838 gaiacollaboration2016
Mid-Infrared Photometry
L (mag)
Value Error Ref.
8.93 lyo2003
S_3p6 (mag)
Value Error Ref.
9.15 0.04 megeath2005
S_4p5 (mag)
Value Error Ref.
9.07 0.07 megeath2005
S_5p8 (mag)
Value Error Ref.
9.04 0.01 megeath2005
S_8 (mag)
Value Error Ref.
9.04 0.01 megeath2005
Coordinates
ra (h m s)
Value Error Ref.
08 42 38.632 gaiacollaboration2016
08 42 38.799 cutri2003
08 42 38.684 wright2010
08 42 38.770 riviere-marichalar2015
08 42 38.770 lopez-santiago2010
08 42 38.770 messina2011
08 42 38.770 sicilia-aguilar2009
08 42 38.770 gautier2008
08 42 38.770 scholz2007
08 42 38.770 mentuch2008
08 42 38.770 bouwman2006
08 42 38.770 jayawardhana2006
08 42 38.770 haisch2005
08 42 38.770 megeath2005
08 42 38.80 luhman2004
08 42 38.770 lawson2004
08 42 38.770 lyo2003
08 42 38.770 lawson2001
08 42 38.770 skiffBMK
08 42 38.598 henden2016
08 42 39.0 mamajek1999
08 42 38.627 gaiacollaboration2018
dec (d m s)
Value Error Ref.
-78 54 42.33 gaiacollaboration2016
-78 54 42.77 cutri2003
-78 54 42.45 wright2010
-78 54 42.75 riviere-marichalar2015
-78 54 42.75 lopez-santiago2010
-78 54 42.75 messina2011
-78 54 42.75 sicilia-aguilar2009
-78 54 42.75 gautier2008
-78 54 42.75 scholz2007
-78 54 42.75 mentuch2008
-78 54 42.75 bouwman2006
-78 54 42.75 jayawardhana2006
-78 54 42.75 haisch2005
-78 54 42.75 megeath2005
-78 54 42.8 luhman2004
-78 54 42.75 lawson2004
-78 54 42.75 lyo2003
-78 54 42.75 lawson2001
-78 54 42.80 skiffBMK
-78 54 42.47 henden2016
-78 54 43.5 mamajek1999
-78 54 42.32 gaiacollaboration2018
ra_deg (deg)
Value Error Ref.
130.66096654 0.179 gaiacollaboration2016
130.661664 60.0 cutri2003
130.6611854 46.1463 wright2010
130.66154167 riviere-marichalar2015
130.66154167 lopez-santiago2010
130.66154167 messina2011
130.66154167 sicilia-aguilar2009
130.66154167 gautier2008
130.66154167 scholz2007
130.66154167 mentuch2008
130.66154167 bouwman2006
130.66154167 jayawardhana2006
130.66154167 haisch2005
130.66154167 megeath2005
130.66166667 luhman2004
130.66154167 lawson2004
130.66154167 lyo2003
130.66154167 lawson2001
130.66154 skiffBMK
130.660823 375.0 henden2016
130.6625 mamajek1999
130.66094524 0.0401 gaiacollaboration2018
dec_deg (deg)
Value Error Ref.
-78.91175894 0.245 gaiacollaboration2016
-78.91188 130.0 cutri2003
-78.9117909 45.2548 wright2010
-78.911875 riviere-marichalar2015
-78.911875 lopez-santiago2010
-78.911875 messina2011
-78.911875 sicilia-aguilar2009
-78.911875 gautier2008
-78.911875 scholz2007
-78.911875 mentuch2008
-78.911875 bouwman2006
-78.911875 jayawardhana2006
-78.911875 haisch2005
-78.911875 megeath2005
-78.91188889 luhman2004
-78.911875 lawson2004
-78.911875 lyo2003
-78.911875 lawson2001
-78.91189 skiffBMK
-78.911797 360.0 henden2016
-78.91208333 mamajek1999
-78.91175504 0.0463 gaiacollaboration2018

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