由 willis » 2011-01-27, 23:20
David 寫:An ex-student wants to see the sun in H-alpha. So I took out my only equipment for this purpose: LS152T. The beauty of LS152T is that it is probably the largest portable h-alpha telescope in the market. I carried this with one hand and a small azimuthal mount with another hand to my car. I parked my car on a quiet road and set up the scope. We started observing within one minute!
When I looked into the Lunt zoom eyepiece, a huge prominence greeted me in all its glory. Like a fountain of fire standing proud on the solar surface, it transformed from a dark filament on the solar disk to a bright prominence beyond the edge of the sun. On the opposite end of the sun was two departing sunspots, with a nice prominence emerging from them.
I took out my new 6mm Ethos to receive its first light. At 150x, the details shown by the huge filaprom were fantastic!

Great1! 150X! Let me try my TV 2-4mm on LS80T. Perhaps comparable magnification, but poor FOV.

Tak FS60C, APM-LOMO 80/480, APM-TMB 105/650, SW Black Diamond 120ED, Borg 125SD, SW 12" Dobs , Lunt LS35T, Lunt LS80T
TMB Super Mono 4mm, Pentax XO 2.5mm, Baader Planetarium 8-24mm, Nagler (2-4mm, 3-6mm, 13mm), Ethos (3.7mm, 6mm, 10mm), Explore Scientific 100º (14mm, 20mm)
DBK 21, DMK 21, DMK 41, DMK 51, ASI 178MC
Nikon D810A, Canon 5D II, Fujifilm X-T10