NGC 1664 (Lund 143, Cr 56) Open Cluster in Auriga
Located at: RA 04 hours 51 minutes 06 seconds, Dec +40 degrees 40 minutes 36 seconds
Size: 18'; Magnitude: 7.6; Class: III 1 p
North is up

West to the right
| Telescope: |
8" f5 Newtonian reflector |
| Camera: |
ST-8XME, self-guided, binned 1x1, temp -25c, camera control MaxIm DL 4.56 |
| Image: |
Lumicon Red filter, 590 minutes (59 x 10 minute subs) 12/23/24/2009; seeing 2.8-4.2 FWHM per CCDStack |
| Processing: |
CCDStack 1.6.0.6, Photoshop 7.0 |
| Location: |
Rolling Roof Observatory, Thousand Oaks, CA 91360 (+34d 13m 29s -118h 52m 20s) |
| Notes: |
From the NGC / IC Project: Contemporary Visual Observation(s) for NGC 1664 NGC 1664 = Cr 56 = Mel 27 = OCL-411 04 51 05 +43 40.6 V = 7.6; Size 18 13.1": 40-45 stars, striking, rich, many faint double stars and chains. A long string of stars to the S leads to mag 7.5 SAO 39807 on the SE edge. Appears rich in the center. - by Steve Gottlieb |