Date & Time: | Apr 13 2024, from 23:05 to 24:40 JST(+0900) |
Mosaic of 2 flames of 6min.×8shots | |
Optical: | Meade 25cm(10") Schmidt-Cassegrain with conversion lens (f=1600mm, F6.3) |
with IDAS LPS-P1 Light-pollution suppression filter | |
Auto-guided with Meade LX200 Equatorial & Lacerta M-GEN | |
Digital Camera: | Nikon D810A |
Location: | Ooizumi, Hokuto city, Yamanashi pref. |
Camera Settings: | Recording Format...14bit CCD-RAW, converted to 16bit TIFF(4080×4080) |
Device Size...20×20mm | |
Sensitivity...ISO4000, White Balance...Daylight |
Though they are typical spiral galaxies, fairly strained by the gravitational exchange each other. NGC4631 has the apparent length of 15.5 arc minute and the magnitude about 10, its slender shape is clearly seen with small telescopes. But NGC4656 is a bit dimmer with the magnitude of 10.6, should be needed a medium-sized telescope. I associate these galaxies floating in the dark universe with two fishes sailing. The galaxies lie on about 22 million light years away. And you can notice a tiny satellite galaxy of NGC4627 snuggling up to the north of NGC4631. |
NGC4565 |
NGC4725 |
Copyright(c) 2024 by Naoyuki Kurita, All rights reserved. | |||
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