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| Object/type: | M1 / Supernova Remnant |
| mag/dia/dist: | 8.4 / 6' x 4' / 6,500 ly |
| constellation: | Taurus |
| date/time/place: | Nov 18, 01 / 00:45 / bangkok |
| trans'y/seeing/l-poll: | goog / good / medium |
| telescope: | newtonian 4.5" f8.8 |
| eyepieces/power: | 25mm / 40x |
| sky atlas page: | 5 |
Start from Aldebaran, hop to star 97-->star 102,106 & 104-->star 109-->
star 114-->star 123 or zeta-Tauri. For the last step hopping, it need more
detail as below map (print out from starry night and plot more faint 3 stars
from Redshift III). M1 locates between star HD244988 & HD245010. It needs to know
exactly position of faint object so that the eyes & brain can get it and separate
it from sky-glow background. M1 appeared as very faint smudge of light, round
shape, image not stable due to seeing condition, it need to watch to near zenith
for more stable, also use avert vision. I have observed 4-5 sessions before this
but couldn't found. It is quite hard M-object for Bangkok sky.
Refer to text: M1 created by supernova of A.D. 1054, which became as bright as Venus
and was visible in the daytime. Expansion velocity 1,600 km/sec. At center of M1
has a pulsar which is neutron star magnitude 16.
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| Object/type: | |
| mag/dia/dist: | |
| constellation: | |
| date/time/place: | |
| trans'y/seeing/l-poll: | |
| telescope: | |
| eyepieces/power: | |
| sky atlas page: | |
The Detail map print out from Starry night backyard.
Three faint stars near M1, plot by manual using information from Redshift III.
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