Post by BrƎИsꓘi on Oct 17, 2024 13:30:46 GMT
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C/2023 A3 (Tsuchinshan–ATLAS) is a
from the Oort cloud discovered by the Purple Mountain Observatory in China on 9 January 2023 and independently found by ATLAS South Africa on 22 February 2023.
The next week or so present as a decent (post-sunset) target for Northern Hemisphere stargazers. It's currently around 50,000,000 miles from Earth.
With an Orbital period of 1.4 billion years (inbound) and 235,000 years (outbound) this is our chance to see a visitor from an extremely remote region of a solar system that science knows very little about.
Here's how/where to look for/image it:
Viewing:
♦ You'll need a fairly clear line of sight to West/Southwest horizon
♦ best time to start viewing is from +15mins after sunset. It may become "naked-eye" visible anytime from +30-45mins after sunset.
♦ Closer you are to sunset, less likely it'll be "naked-eye" visible - use binos if you have them (don't point at the sun).
♦ Target area is WSW (midway between West and Southwest
♦ Bright Star Arcturus is to the right of and level with the
Imaging Instructions:
♦ Set your phone to Manual (or Night) (or Pro) mode
♦ set exposure to 1 or 10 secs (you may need to experiment)
♦ set ISO to around 400 (increase/decrease as req'd)
♦ ensure focal length set to infinity (may be abbreviated to FL or F/L)
♦ set delay timer to 3secs
♦ place phone down steady pointing toward where the sun had set
♦ press trigger
repeat as required:
note - settings for DSLR/bridge camera will be similar.
Good luck!
C/2023 A3 (Tsuchinshan–ATLAS) is a
from the Oort cloud discovered by the Purple Mountain Observatory in China on 9 January 2023 and independently found by ATLAS South Africa on 22 February 2023.The next week or so present as a decent (post-sunset) target for Northern Hemisphere stargazers. It's currently around 50,000,000 miles from Earth.
With an Orbital period of 1.4 billion years (inbound) and 235,000 years (outbound) this is our chance to see a visitor from an extremely remote region of a solar system that science knows very little about.
Here's how/where to look for/image it:
Viewing:
♦ You'll need a fairly clear line of sight to West/Southwest horizon
♦ best time to start viewing is from +15mins after sunset. It may become "naked-eye" visible anytime from +30-45mins after sunset.
♦ Closer you are to sunset, less likely it'll be "naked-eye" visible - use binos if you have them (don't point at the sun).
♦ Target area is WSW (midway between West and Southwest
♦ Bright Star Arcturus is to the right of and level with the
Imaging Instructions:
♦ Set your phone to Manual (or Night) (or Pro) mode
♦ set exposure to 1 or 10 secs (you may need to experiment)
♦ set ISO to around 400 (increase/decrease as req'd)
♦ ensure focal length set to infinity (may be abbreviated to FL or F/L)
♦ set delay timer to 3secs
♦ place phone down steady pointing toward where the sun had set
♦ press trigger
repeat as required:
note - settings for DSLR/bridge camera will be similar.
Good luck!
