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Amateur Telescope Makers of Boston
A general interest astronomy club
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Observer's Challenge object list
Monthly objects for 2025
Month
Object name
Type
Constellation
RA
DEC
January
NGC 1491
Emission Nebula
Perseus
04h 04m
+51º 18′
February
NGC 1964
Galaxy
Lepus
05h 33m
-22.0′
March
NGC 2419
Globular (Intergalactic Tramp)
Lynx
07h 38m
+38º 53m
April
NGC 3893/96
Galaxy Pair
Ursa Major
11h 49m
+48º 42′
May
NGC 4284/4290
Galaxy Pair
Ursa Major
12h 21m
+58º 06′
June
NGC 5981/82/85
Galaxy Group
Draco
15h 38m
+59º 23′
July
NGC 6181
Galaxy
Hercules
16h 32m
+19º 50′
August
Webb's Wreath
Asterism
Hercules
18h 02m
+26º 18′
September
NGC 6540
Globular Cluster
Sagittarius
18h 06m
-27º 46′
October
NGC 7293
Planetary Nebula
Aquarius
22h 30m
-20º 48′
November
NGC 55
Galaxy
Sculptor
00h 15m
-39º 12′
December
NGC 188
Open Cluster
Cepheus
00h 5m
+85º 15′