Star • GDR1 5209037732179166208

Cluster
eta Cha
Proposed Clusters
Alternate Names
HPPSC100A_J084227.2-785747
[MHL2005] 5
[GRS2008] 05
USNO-A2.0 entry
V* EK Cha
2MASS 08422710-7857479
GDR2 5209037736474704512
GDR1 5209037732179166208
HPPSC160A_J084226.9-785748
EK Cha
2MASS J08422710-7857479
RECX 5
WISEA J084226.98-785747.6
eta Cha 5
SIP Output
Aladin

Fiducial Data

Parameter Value Error Unit Reference
cluster_name eta Cha [char] messina2011
ra 08 42 26.939 h m s gaiacollaboration2016
dec -78 57 47.5087 d m s gaiacollaboration2016
ra_deg 130.61224563 deg gaiacollaboration2016
dec_deg -78.96319686 deg gaiacollaboration2016
pm_ra -30.296 0.077 mas/yr gaiacollaboration2018
pm_dec 27.25 0.092 mas/yr gaiacollaboration2018
rv 17.2 0.6 km/s riviere-marichalar2015
plx 10.1249 0.0452 mas gaiacollaboration2018
st_dist 98.7664 0.4409 pc gaiacollaboration2018
spt M5 [char] messina2011
spt_num 65.0 [decimal allowed] messina2011
spt_lit M5 [char] messina2011
H_alpha -8.95 0.1nm riviere-marichalar2015
H_alpha_tenp 246.0 km/s riviere-marichalar2015
LiI_6708 0.606 0.021 0.1nm mentuch2008
vsini 8.75 1.48 km/s scholz2007
rot_period 3.11 days lawson2001
Av 0.0 0.58 mag YSOPY
Teff 2880.0 70.6 K YSOPY
log_Teff 3.459 0.01 log K YSOPY
L_star 0.124 0.0 Lsun YSOPY
log_L_star -0.907 0.01 log Lsun YSOPY
R_star 0.002 Rsun YSOPY
M_star 0.096 0.0 Msun YSOPY
log_M_star -1.02 0.01 log Msun YSOPY
age_star 0.161 0.04 Myr YSOPY
log_age_star 5.207 0.12 log yr YSOPY
log_g 4.04 0.05 log cm/s2 mentuch2008
log_nLi 3.41 0.09 dex mentuch2008
disk_flag True [boolean] bouwman2006
disk_desc Disk [char] bouwman2006
fdisk 0.06 gautier2008
acc_flag True [boolean] riviere-marichalar2015
Mdot 0.0 Msun/yr riviere-marichalar2015
log_Mdot -10.5 log Msun/yr riviere-marichalar2015
xray_flag True [boolean] lopez-santiago2010
Lx 6.3095734448e+28 erg/s lopez-santiago2010
log_Lx 28.8 log erg/s lopez-santiago2010
B 16.659 0.065 mag henden2016
V 15.2 mag lawson2001
Rc 13.91 mag lawson2001
Ic 12.39 mag lawson2001
g_sloan 15.861 0.011 mag henden2016
r_sloan 14.617 0.027 mag henden2016
i_sloan 13.064 0.275 mag henden2016
gaia_g 13.7524 0.001 mag gaiacollaboration2018
gaia_bp 15.3802 0.0075 mag gaiacollaboration2018
gaia_rp 12.51 0.0042 mag gaiacollaboration2018
tm_J 10.777 0.023 mag cutri2003
tm_H 10.099 0.021 mag cutri2003
tm_K 9.855 0.021 mag cutri2003
tm_flags "AAA,0" [char] cutri2003
J 10.99 mag lyo2003
H 10.29 mag lyo2003
K 9.96 mag lyo2003
L 9.57 mag haisch2005
S_3p6 9.59 0.03 mag sicilia-aguilar2009
S_4p5 9.5 0.03 mag sicilia-aguilar2009
S_5p8 9.37 0.01 mag sicilia-aguilar2009
S_8 8.89 0.01 mag sicilia-aguilar2009
S_24_fd 57.74 0.07 mJy gautier2008
S_24 5.05 0.02 mag sicilia-aguilar2009
S_70_fd 94.8 0.2 mJy gautier2008
S_70 2.38 0.04 mag sicilia-aguilar2009
S_160_fd 165.0 48.0 mJy gautier2008
S_13 21.0 mJy bouwman2006
S_33 68.0 mJy bouwman2006
W_3p4 9.718 0.023 mag wright2010
W_4p6 9.468 0.02 mag wright2010
W_12 7.861 0.018 mag wright2010
W_22 5.192 0.029 mag wright2010
wise_flags "AAAA,dd00" [char] wright2010
Her_100 124.099 8.318 mJy marton2017
Her_160 125.825 19.735 mJy marton2017

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.
M4 luhman2004
M4 skiffBMK
M4 lawson2001
M5 mamajek1999
spt_num ([decimal allowed])
Value Error Ref.
64.0 luhman2004
64.0 skiffBMK
64.0 lawson2001
65.0 mamajek1999
spt_lit ([char])
Value Error Ref.
M4 luhman2004
M4Ve skiffBMK
M4 lawson2001
M5 mamajek1999
H_alpha (0.1nm)
Value Error Ref.
-8.57 4.29 scholz2007
-8.6 4.3 jayawardhana2006
-35.0 lawson2004
-13.2 mamajek1999
H_alpha_tenp (km/s)
Value Error Ref.
194.0 66.0 jayawardhana2006
330.0 lawson2004
LiI_6708 (0.1nm)
Value Error Ref.
0.6 mamajek1999
vsini (km/s)
Value Error Ref.
8.8 jayawardhana2006
Derived Stellar Properties
Teff (K)
Value Error Ref.
3000.0 riviere-marichalar2015
3314.0 11.0 mentuch2008
3270.0 luhman2004
3388.0 lawson2001
3895.11 359.27 gaiacollaboration2018
log_Teff (log K)
Value Error Ref.
3.48 riviere-marichalar2015
3.52 0.01 mentuch2008
3.51 luhman2004
3.53 lawson2001
L_star (Lsun)
Value Error Ref.
0.06 0.03 riviere-marichalar2015
0.062 luhman2004
0.063 lawson2001
log_L_star (log Lsun)
Value Error Ref.
-1.2218 0.6109 riviere-marichalar2015
-1.20761 luhman2004
-1.20066 lawson2001
R_star (Rsun)
Value Error Ref.
0.73 lawson2001
M_star (Msun)
Value Error Ref.
0.27 lawson2001
0.2 mamajek1999
log_M_star (log Msun)
Value Error Ref.
-0.5686 lawson2001
-0.699 mamajek1999
age_star (Myr)
Value Error Ref.
7.0 lawson2001
2.0 mamajek1999
log_age_star (log yr)
Value Error Ref.
6.85 lawson2001
6.3 mamajek1999
X-ray
xray_flag ([boolean])
Value Error Ref.
True mamajek1999
Lx (erg/s)
Value Error Ref.
1e+29 mamajek1999
log_Lx (log erg/s)
Value Error Ref.
29.0 mamajek1999
Optical Photometry
V (mag)
Value Error Ref.
15.153 0.045 henden2016
gaia_g (mag)
Value Error Ref.
13.531 gaiacollaboration2016
Mid-Infrared Photometry
L (mag)
Value Error Ref.
9.26 lyo2003
S_3p6 (mag)
Value Error Ref.
9.59 0.03 megeath2005
S_4p5 (mag)
Value Error Ref.
9.5 0.03 megeath2005
S_5p8 (mag)
Value Error Ref.
9.37 0.01 megeath2005
S_8 (mag)
Value Error Ref.
8.89 0.01 megeath2005
Coordinates
ra (h m s)
Value Error Ref.
08 42 26.939 gaiacollaboration2016
08 42 27.106 cutri2003
08 42 26.984 wright2010
08 42 27.088 riviere-marichalar2015
08 42 27.088 lopez-santiago2010
08 42 27.088 messina2011
08 42 27.088 sicilia-aguilar2009
08 42 27.088 gautier2008
08 42 27.088 scholz2007
08 42 27.088 mentuch2008
08 42 27.088 bouwman2006
08 42 27.088 jayawardhana2006
08 42 27.088 haisch2005
08 42 27.088 megeath2005
08 42 27.11 luhman2004
08 42 27.088 lawson2004
08 42 27.088 lyo2003
08 42 27.089 skiffBMK
08 42 27.088 lawson2001
08 42 26.969 marton2017
08 42 27.062 henden2016
08 42 27.3 mamajek1999
08 42 26.934 gaiacollaboration2018
dec (d m s)
Value Error Ref.
-78 57 47.51 gaiacollaboration2016
-78 57 47.92 cutri2003
-78 57 47.64 wright2010
-78 57 47.93 riviere-marichalar2015
-78 57 47.93 lopez-santiago2010
-78 57 47.93 messina2011
-78 57 47.93 sicilia-aguilar2009
-78 57 47.93 gautier2008
-78 57 47.93 scholz2007
-78 57 47.93 mentuch2008
-78 57 47.93 bouwman2006
-78 57 47.93 jayawardhana2006
-78 57 47.93 haisch2005
-78 57 47.93 megeath2005
-78 57 47.9 luhman2004
-78 57 47.93 lawson2004
-78 57 47.93 lyo2003
-78 57 47.92 skiffBMK
-78 57 47.93 lawson2001
-78 57 47.85 marton2017
-78 57 48.05 henden2016
-78 57 48.5 mamajek1999
-78 57 47.49 gaiacollaboration2018
ra_deg (deg)
Value Error Ref.
130.61224563 0.185 gaiacollaboration2016
130.612943 60.0 cutri2003
130.612434 41.1299 wright2010
130.61286667 riviere-marichalar2015
130.61286667 lopez-santiago2010
130.61286667 messina2011
130.61286667 sicilia-aguilar2009
130.61286667 gautier2008
130.61286667 scholz2007
130.61286667 mentuch2008
130.61286667 bouwman2006
130.61286667 jayawardhana2006
130.61286667 haisch2005
130.61286667 megeath2005
130.61295833 luhman2004
130.61286667 lawson2004
130.61286667 lyo2003
130.61287 skiffBMK
130.61286667 lawson2001
130.612371 1922.4 marton2017
130.612758 455.0 henden2016
130.61375 mamajek1999
130.612223 0.0391 gaiacollaboration2018
dec_deg (deg)
Value Error Ref.
-78.96319686 0.273 gaiacollaboration2016
-78.96331 130.0 cutri2003
-78.9632323 40.1367 wright2010
-78.96331389 riviere-marichalar2015
-78.96331389 lopez-santiago2010
-78.96331389 messina2011
-78.96331389 sicilia-aguilar2009
-78.96331389 gautier2008
-78.96331389 scholz2007
-78.96331389 mentuch2008
-78.96331389 bouwman2006
-78.96331389 jayawardhana2006
-78.96331389 haisch2005
-78.96331389 megeath2005
-78.96330556 luhman2004
-78.96331389 lawson2004
-78.96331389 lyo2003
-78.96331 skiffBMK
-78.96331389 lawson2001
-78.963291 367.2 marton2017
-78.963347 501.0 henden2016
-78.96347222 mamajek1999
-78.96319282 0.0485 gaiacollaboration2018

All young stellar objects welcome!

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