Cluster • ONC

Name: Orion Nebula Cluster

Alternate Names: Ori OB 1d; Orion Cluster; Orion Nebula; M42; OMC-1

Parent: Orion A

Cluster Data

Parameter	Value	Error	Unit	Reference
dist_mean	402.9	6.5	pc	YSOC
plx_mean	2.481	0.041	mas	YSOC
rv_mean	21.8	6.6	km/s	YSOC
pm_ra_mean	1.48	0.11	mas/yr	YSOC
pm_dec_mean	0.5	0.12	mas/yr	YSOC

Non Fiducial Data

dist_mean (pc)
Value	Error	Ref.
388.0	5.0	kounkel2017
391.0	11.0	mayne2008
402.9	6.5	YSOC

plx_mean (mas)
Value	Error	Ref.
2.481	0.041	YSOC

rv_mean (km/s)
Value	Error	Ref.
21.8	6.6	YSOC

pm_ra_mean (mas/yr)
Value	Error	Ref.
1.48	0.11	YSOC

pm_dec_mean (mas/yr)
Value	Error	Ref.
0.5	0.12	YSOC

cl_notes ([char])
Value	Error	Ref.
kuhn2018 gaiaDR2 analysis		YSOC