Constellation of the Month: January
Aries Sign of the Zodiac (The Ram)

by: John Mirtle.
Page last updated: May 3, 2004

Contents
Small Scope Objects    Big Scope Objects    Challenge Objects    Maps    Photos

Small Scope Objects:

Name R.A. Decl. Details
  g Arietis 01hr 53m +19° 18' A pair of equal magnitude blue-white stars, shining at mag 4.8. Separation is 7.8 arc seconds. Easily split in any scope. One of the first known doubles - Hooke, 1664.
  1 Arietis 01hr 50m +22° 17' A slightly harder double, components are mag. 6.2 and 7.2, with a separation of 2.8 arc seconds in PA 166°. Orange and light blue in colour.
  NGC 772! 01hr 59.3m +19° 01' A bright Sb spiral galaxy, 7.1 x 4.5 arc minutes in size. Visual magnitude is 10.3, with a bright core. Larger scope owners look for 14th mag. NGC 770, 4 arc minutes south. (110NGC)
^ top

Big Scope Objects:

Name R.A. Decl. Details
  DoDz 1 02hr 47m +17° 12' A loose open cluster of 12 stars, mag. 8.5 and fainter. 12 arc minutes in diameter. Located SW of 5th magnitude 42 (Pi) Arietis.
  NGC 821 02hr 08m +11° 00' A bright E2 elliptical galaxy, 2.5 x 1.5 arc minutes. Magnitude 10.8, mottled appearance in larger scopes.
  NGC 972 02hr 34m +29° 19' An Sc spiral galaxy. This elongated smudge glows at mag. 11.3, 3.6 x 2.4 arc minutes in size.
  NGC 1156 02hr 59m +25° 14' An interesting irregular galaxy. 3.1 x 2.3 arc minutes in size, mag 11.7. A bright core with patchy mottling in the surrounding halo with larger scopes.
  NGC 877 02hr 18m +14° 33' A small, round Sc galaxy 2.4 x 1.8 arc minutes in size. Mag 11.8. Look for NGC 876 (mag 14.5) 2 arc min SW, and NGC 871 (mag 14.2) 12 arc minutes west.
  NGC 803 02hr 03m +16° 02' An inclined Sb spiral galaxy, 4.3 x 2 arc minutes. Mag 12.4
^ top

Challenge Object:

Name R.A. Decl. Details
  vdB16 03hr 28m +29° 47' A faint reflection nebula surrounding a 9th magnitude star, 7.4 x 5.2 arc minutes. As with most reflection nebula, filters will  not help. Use generous quantities of dark sky and aperture, with medium to high magnification.
^ top

Constellation Maps:

Lines No Lines Reverse Reverse No Lines


Lines No Lines Reverse Reverse No Lines No Map

^ top

Photos:


 
Photo 1
South is at top to match the view in an inverting telescope.
Photo credit: John Mirtle.
^ top
Back