Images of M4 | Messier 4 | NGC 6121

AstroImaging by Myke Wolf
Celebrating the Beauty of the Night Sky

Globular Cluster

M4 | Messier 4 | NGC 6121

M4 is the only globular that Messier himself saw resolved into stars. This is one of the closest globulars, and its brighter stars are about 10.8 mV. It is about 70 light years across. At Class IX this is a loosely packed globular. With less than 20,000 stars it's one of the least populated globs.

The exposure time for this globular was too low, and the object was very low in sky

All Images of Globular Cluster
27 May 2019	23 Jul 2014

Details:

Night of:	Wednesday July 23, 2014
Site:	Palomar Mountain
Local Time:	11:30 PM \| Jul 23, 2014
Altitude:	20°

RA:	16h 23m 35s
Declination:	-26d 32'

Distance:	7,200 light years
Magnitude:	+5.9 mV
Size:	26'

Camera Settings:

Telescope:	9.25-SCT
Camera:	Orion Starshoot DSI2 + 0.5x Reducer
f/ratio:	f/5
Pixel Scale:	1.49 arcsec
Image Size:	761 x 564 pixels (0.4 MP)
	18.9' x 14.0'
Exposure:	5 sec
Stacked Frames:	25
Total Integration:	2 minutes

1 seconds to generate page

Hi Myke!

your privacy