M67 in Cancer M67 in Cancer

M67 is a fairly sparse open cluster. Compare this photo with the one I took in 2009

L, R, G, B, HA, OIII, SII Details
Lum Red Green Blue Ha OIII SII
3x3 3x3 3x3 3x3 0 0 0

Open Cluster NGC 1662 In Orion Open Cluster NGC 1662 In Orion

L, R, G, B, HA, OIII, SII Details
Lum Red Green Blue Ha OIII SII
0x0 5x5 5x5 5x5 0 0 0