Deep-Sky Objects for May

Objects for Binoculars

RA Dec Number Mag(s) Size/Sep. PA Const. Type of Object

12^h 30.0^m +51° 32' 7 CVn 6.2, 10.4, 9.0 AB 109", AC 229" AC 172°, AB 327° CVn Triple Star

13^h 15.8^m +42° 02' M63 8.6v 13.5'x8.3' CVn "Sunflower" Galaxy"

13^h 23.9^m +54° 54' 79 & 80 UMa 2.3, 4.0 708.7" 71° Uma Double Star, "Mizar & Alcor"

13^h 29.9^m +47° 12' M51 8.4v 8.2'x6.9' CVn "Whirlpool Galaxy"

13^h 42.2^m +28° 23' M3 5.9v 16.2' CVn Globular Cluster

Objects for Small Telescopes (2-6 inch)

RA Dec Number Mag(s) Size/Sep. PA Const. Type of Object

12^h 17.5^m +37° 49' NGC 4244 10.4v 17.0'x2.2' CVn Galaxy

12^h 19.0^m +47° 18' M106 8.4v 20.0'x8.4' CVn Galaxy

12^h 56.0^m +38° 19' 12-Alp a 2.9, 5.5 19.4" 229° CVn Double Star, "Cor Caroli"

13^h 12.9^m +18° 10' M53 7.5v 12.6' Com Globular Cluster

13^h 23.9^m +54° 56' 79 Zeta 2.4, 3.9 14.4 150° Uma Double Star

Objects for Medium Telescopes (8-14 inch)

RA Dec Number Mag(s) Size/Sep. PA Const. Type of Object

10^h 19.9^m +45° 33' NGC 3198 10.3v 9.2'x3.5' UMa Galaxy

11^h 11.5^m +55° 40' NGC 3556 10.0v 8.1'x2.1' UMa Galaxy

11^h 57.6^m +53° 23' M109 9.8v 7.6'x4.3' UMa Galaxy

12^h 13.8^m +14° 54' M98 10.1v 9.1'x2.1' Com Galaxy

12^h 22.9^m +15° 47' M100 9.3v 6.2'x5.3' Com Galaxy

12^h 25.1^m +12° 53' M84 9.1v 5.1'x4.1' Vir "Galaxy, with N4388, N4387"

12^h 26.2^m +12° 57' M86 8.9v 12.0'x9.3' Vir "Galaxy, with N4388, N4387"

Objects for Larger Telescopes (16-inch & larger) Challenge Objects

RA Dec Number Mag(s) Size/Sep. PA Const. Type of Object

10^h 18.3^m +41° 25' NGC 3184 9.8v 7.8'x7.2' UMa Galaxy

11^h 14.8^m +55° 01' M97 9.9v 194" Uma Planetary Nebula "Owl"

11^h 18.8^m +14° 25' M99 9.9v 4.6'x4.3' Com Galaxy

12^h 36.3^m +25° 59' NGC 4565 9.6V 14.0'X1.8' Com Galaxy

12^h 36.6^m +11° 14' NGC4567-68 10.8, 11.3 4.7'x2.2' Vir Galaxies, "Siamee Twins"

12^h 40.0^m -11° 37' M104 8.0v 7.1'x4.4' Vir "Sombrero Galaxy"

12^h 56.7^m +21° 41' M64 8.5v 9.2'x4.6' Com "Black Eye Galaxy"

14^h 03.2^m +54° 21' M101 7.9v 26.0'x26.0' UMa Galaxy

Print and use the Deep-Sky Interest Group - Observation Form to record your observations.

Select from a topic in the navigation bar on the left, or from the links below.

Home | About | Calendar | Facilities | Features | Guides | Light Pollution | S.I.G. | Members | Join | Links

Page last modified Dec 8, 2007 at 07:57 PST.
Send site issues to: IT Committee