Orion Apex 90mm – Apa sepatutnya aku boleh tengok… 31 Disember 2009Posted by azmirul in Astronomy.
Malam tadi aku ader terbaca review org yg guna telescope macam aku dari website cloudynights.. banyakgak Messier objects yg sepatutnya bleh tengok… haha… yg aku selalu tengok asyik Jupiter ajer… heher… ni yg bersemangat nak study semua Messier object tu sebab kadang2 semua orang boleh pandang ke langit, malahan sejak dari kecik dak tengok bintang… cuma bukan semua yg tahu apa benda yg dipandang tu termasukler aku.. haha.. tapi lepas ni, aku nak jadi golongan yg lebih berilmu.. nak study information di sebalik semua constellation dan Messier object yg ada.
kalo ikut review STARMAX 90mm EQ kat bawah ni boleh menjadi reference apa yg sepatutnya aku boleh tengok guna telescope aku (utk rujukan aku.. heher)… tapi sebelum tu aku kena sambung study code Messier object tu, M13, M31, M57??? haha peningskit sebab aku cuma tahu nama ajer heher:
- M11 = Wild Duck Cluster at constellation Scutum
- M13 = Hercules Globular Cluster -> constellation of Hercules
- M31 = Andromeda Galaxy -> constellation Andromeda
- M57 = Ring Nebula -> constellation of Lyra
STARMAX 90mm EQ by David Knisely 01/21/04,
- Epsilon Lyrae showed hints of its “Double-double” nature at only 50x, although it took about 83x to get a hint of dark sky between the stars.
- Moon -> The little scope really showed its stuff on the moon, with razor-sharp detail and very good contrast. In fact, I pushed the scope up to 250x, and still got a very passable lunar image, although it was somewhat better below 200x.
- Venus was similarly quite sharp, while much later on, Saturn showed Cassini’s Division all the way around the rings’ span, as well as the diffuse equatorial belt and moons Titan, Rhea, and Iapetus (125x, 195x).
- M11 showed its triangular grainy mass of stars at 50x, and resolved nicely at 125x into a mass of between 100 and 200 faint stars.
- M13 began to show hints of resolution at 50x, and many very faint stars at 125x, although the cluster was not totally resolved.
- M57 –> I had little trouble seeing the ‘smoke-ring’ form of M57, and could just barely glimse the 13th magnitude star just east of the nebula with averted vision at times.
- M31 and M32 were also quite easy, with the fainter M110 also visible.
- Bright open star clusters were well shown in this telescope, with the Double Cluster at 52x being particularly spectacular.
- The maximum one degree true field of view of this instrument might limit this scope’s use on some of the larger or fainter deep-sky objects, but overall, it should still be fairly useful for viewing all the Messier objects and many of the brighter Herschel 400 objects. Indeed, I had the scope out at my rural observing site under dark skies and was picking up quite a number of fainter and more challenging targets.