Uploaded November 2025 | Updated September 2026, 12 minutes ago
Why don't we see things? How did astrophotographers miss a huge nebula whose apparent position is right next to the Andromeda Galaxy? This video aims to find out. Part of it may be related to attention and expectations. Part of it might be do to noise reduction! Let's discuss!
@astrofalls' video on the oxygen arc near andromeda: youtu.be/H9sqPHiCypE?si=UMxGTXImnjtn1hrV
The preprint that used Astro Collective's data: arxiv.org/pdf/2507.15834
@DanielSimons' selective attention task: youtube.com/watch?v=vJG698U2Mvo
Become a buymeacoffee member to help choose which products I review: buymeacoffee.com/deepskydetail
Affiliate Links:
High Point Scientific: highpointscientific.com/?rfsn=8751569.cc9d94
Agena Astro: agenaastro.com/?rfsn=7802039.3f4caf
Skywatcher HEQ5 Mount amzn.to/3NVrVQi
Skywatcher 80mm F7.5 Doublet amzn.to/47mbfZi
ZWO EFW mini filter wheel amzn.to/48OxhoN
Optolong LRGB Filter Set (1.25") amzn.to/47r23Tw
Orion 0.8x Reducer amzn.to/47s64a4
USB RJ45 Cable for Controlling Mount amzn.to/4aPlIzu
Raspberry Pi to control mount amzn.to/48mTBWH
R Pi case with touch screen amzn.to/3HvdNKl
ZWO Autofocuser amzn.to/3Skg0hX
ZWO 294MM Pro Camera: bit.ly/3tZmjOo
HEQ5 Mount: bit.ly/3O7VQVz (mine is Orion Sirius, which is equivalent)
ZWO Filter Wheel: bit.ly/3Soo5lw
Optolong Filters (LRGB, SII, Ha, OIII): bit.ly/3SlEPtJ (the Ha and OIII narrowband filters are better than what I have)
Skywatcher Evostar 80mm: bit.ly/4bfVjev (equivalent lens)
USB RJ45 Cable: bit.ly/48FRj50 (connects mount to laptop directly; mine is a different brand, but this should do)
ZWO Autofocuser: bit.ly/425XUDB
0.8x Reducer: bit.ly/3tQlbg7 (mine is Orion, but this should be equivalent)
Join this channel to get access to perks:
youtube.com/channel/UCoI4bUAKNI3rdvesiNqtYJw/join
Why don't we see things? How did astrophotographers miss a huge nebula whose apparent position is right next to the Andromeda Galaxy? This video aims to find out. Part of it may be related to attention and expectations. Part of it might be do to noise reduction! Let's discuss!
@astrofalls' video on the oxygen arc near andromeda: youtu.be/H9sqPHiCypE?si=UMxGTXImnjtn1hrV
The preprint that used Astro Collective's data: arxiv.org/pdf/2507.15834
@DanielSimons' selective attention task: youtube.com/watch?v=vJG698U2Mvo
Become a buymeacoffee member to help choose which products I review: buymeacoffee.com/deepskydetail
Affiliate Links:
High Point Scientific: highpointscientific.com/?rfsn=8751569.cc9d94
Agena Astro: agenaastro.com/?rfsn=7802039.3f4caf
Skywatcher HEQ5 Mount amzn.to/3NVrVQi
Skywatcher 80mm F7.5 Doublet amzn.to/47mbfZi
ZWO EFW mini filter wheel amzn.to/48OxhoN
Optolong LRGB Filter Set (1.25") amzn.to/47r23Tw
Orion 0.8x Reducer amzn.to/47s64a4
USB RJ45 Cable for Controlling Mount amzn.to/4aPlIzu
Raspberry Pi to control mount amzn.to/48mTBWH
R Pi case with touch screen amzn.to/3HvdNKl
ZWO Autofocuser amzn.to/3Skg0hX
ZWO 294MM Pro Camera: bit.ly/3tZmjOo
HEQ5 Mount: bit.ly/3O7VQVz (mine is Orion Sirius, which is equivalent)
ZWO Filter Wheel: bit.ly/3Soo5lw
Optolong Filters (LRGB, SII, Ha, OIII): bit.ly/3SlEPtJ (the Ha and OIII narrowband filters are better than what I have)
Skywatcher Evostar 80mm: bit.ly/4bfVjev (equivalent lens)
USB RJ45 Cable: bit.ly/48FRj50 (connects mount to laptop directly; mine is a different brand, but this should do)
ZWO Autofocuser: bit.ly/425XUDB
0.8x Reducer: bit.ly/3tQlbg7 (mine is Orion, but this should be equivalent)
Join this channel to get access to perks:
youtube.com/channel/UCoI4bUAKNI3rdvesiNqtYJw/join
