UmbralRaptor changed the topic of #kspacademia to: https://gist.github.com/pdn4kd/164b9b85435d87afbec0c3a7e69d3e6d | Dogs are cats. Spiders are cat interferometers. | Космизм сегодня! | Document well, for tomorrow you may get mauled by a ネコバス. | <UmbralRaptor> egg|nomz|egg: generally if your eyes are dewing over, that's not the weather. | <ferram4> I shall beat my problems to death with an engineer. | We can haz pdf
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<egg|anbo|egg> !wpn whitequark
* galois gives whitequark a chitin chalcogenic accident
<SnoopJeDi> oh no
<egg|anbo|egg> IGS?
<galois> IGS: International GNSS Service
<raptop> !wpn SnoopJeDi
* galois gives SnoopJeDi a loan
<raptop> uh
<raptop> !wpn egg|zzz|egg
* galois gives egg|zzz|egg a thrombolytic Hall regression
<raptop> erm
<raptop> !wpn
* galois gives raptop a étale kappa with a hyperbola attachment
<raptop> Oh, hey, a bug with the a/an thing
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raptop is now known as iSHELLraptop
<iSHELLraptop> note to self: circumpolar objects aren't real
<iSHELLraptop> Well, unless you're SPT
<iSHELLraptop> SPT?
<iSHELLraptop> !acr -add:SPT South Pole Telescope
<galois> Definition added!
<iSHELLraptop> "We cannot understand why the International Astronomical Union, having first decided to measure all planetographic longitudes in the direction opposite to that of rotation, then alters the system for the Earth (1982). We shall /not/ follow this IAU resolution, and we shall contiue to consider /west/ longitudes as positive."
<iSHELLraptop> egg|zzz|egg_: apparently Meenus has issues with the IAU
<kmath> <jerdlngr> Otherwise known as every day since approximately March 12. https://t.co/ldDhhaI2ze
<iSHELLraptop> ...why does Meenus use "semidiameter" instead of "radius"?
<iSHELLraptop> !wpn
* galois gives iSHELLraptop a paper
<iSHELLraptop> ...Meeus
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<iSHELLraptop> !wpn oeuf
* galois gives oeuf a chonky snake
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<iSHELLraptop> oeuf: does ANBOcat know about https://twitter.com/checkiday/status/1274779135097704454
<kmath> <checkiday> Jun 22 is Take Your Cat To Work Day®! #TakeYourCatToWorkDay #Holiday https://t.co/4ZnlrRWnIR
<iSHELLraptop> oeuf: ...if you're still looking for dark current stuff, I'm finding it in the textbook "To Measure the Sky, an Introduction to Observational Astronomy" by Chromey et al
<iSHELLraptop> from a Fermi distribution, rate at which dark charges accumulate in a pixel: dNd/dt = A_0 * T^1.5 * exp(-E_g/(2*k*T))
<iSHELLraptop> A_0 is based on pixel size and structure, E_g is bandgap energy
* iSHELLraptop stares at recent emails. So many meetings...
iSHELLraptop is now known as raptop
<raptop> !choose sleep|don't sleep
<galois> raptop: Your options: sleep, don't sleep. My choice: don't sleep
<raptop> ;choose sleep|don't sleep
<kmath> raptop: sleep
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<SnoopJeDi> 22:58 * galois gives SnoopJeDi a loan
<SnoopJeDi> !how much interest
<galois> SnoopJeDi: 649 interests
<SnoopJeDi> oh no
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<raptop> Hrm, apparently there's a student with a family name of "Alfaro"
* raptop keeps on reading that as "Astolfo"
<raptop> !8 will quals kill me?
<galois> raptop: yes
<raptop> Okay, that at least means I don't have to plan for anything after late august
<egg|anbo|egg> raptop: still eleggtromagnetism and QM? and GR? I forget
<raptop> egg|anbo|egg: eleggtromagnetism and quantum megganics
<raptop> (passed: classical, stat mech)
<egg|anbo|egg> OK
<egg|anbo|egg> raptop: poast EM problems so I can poke you with a pointed stick
<raptop> egg|anbo|egg: will need to wait a bit, but yes
<egg|anbo|egg> raptop: also what should I observe and should I image it
<raptop> Hrm, it's summer
<raptop> egg|anbo|egg: something in Sco or Sgr?
<raptop> M4, 5, 6, 7, or 8?
<raptop> M11? M24? M15?
<raptop> M16? (No, not that kind), M17, M18?
<egg|anbo|egg> maybe Cyg or thereabouts
<egg|anbo|egg> Sgr and Sco will be too low on the horizon by the time it is dark
<egg|anbo|egg> well, they will be too low on the horizon, full stop
<raptop> Arctic-Norman Boreal Observatory
<egg|anbo|egg> well yes
<raptop> Lyra has the double-double (do not eat, unless you live in LA)
<raptop> Cyg has, uh, some meh open clusters? (M29, M39)
<raptop> Oh, right. NGC 7000 (and also the pelican nebula)
<raptop> There's also a planetary nebula (M27) nearbyish, and the coathanger asterism
<egg|anbo|egg> raptop: reminder: I am North 49th parallel
<egg|anbo|egg> s/North/North of the/
<galois> egg|anbo|egg meant to say: raptop: reminder: I am North of the 49th parallel
<egg|anbo|egg> Vancouver is south of me
<raptop> blink
<egg|anbo|egg> raptop: there will be no astronomical night, just four hours of astronomical twilight
<raptop> egg|anbo|egg: so, uh, will you exit nautical twilight before jupiter or saturn are available?
<egg|anbo|egg> they will be above the horizon when I enter astronomical twilight, but they will stay quite low (max alt. below 20°) in a treed direction
<egg|anbo|egg> hm, M16 seems tempting
<egg|anbo|egg> will it clear the trees though
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<egg|anbo|egg> yeah I don’t think M16 clears the trees
<egg|anbo|egg> M29 ?
<egg|anbo|egg> C 30 ?
<egg|anbo|egg> NGC 7319 ?
<egg|anbo|egg> M57 ?
<egg|anbo|egg> I imaged M27 a while back already so I should probably not pick that one again
<raptop> M57 is good
<raptop> (aka: the ghost of a cheerio)
<SnoopJeDi> !wpn -add:adj ghost
<galois> Added adj 'ghost'
<SnoopJeDi> !wpn -add:wpn cheerio
<galois> Added wpn 'cheerio'
<SnoopJeDi> !wpn -add:adj frosted
<galois> Added adj 'frosted'
<WeylandsWings> raptop: see the proposed class action lawsuit against telescope makers?
<WeylandsWings> egg|anbo|egg: ^ you might be interested in that too
<egg|anbo|egg> ?
<WeylandsWings> helps if i link the thing
<raptop> !wpn -add:adj shredded
<galois> Added adj 'shredded'
<raptop> !wpn -add:wpn shredder
<galois> Added wpn 'shredder'
<raptop> WeylandsWings: I had not
<_whitenotifier-d13c> [Principia] Pending. Build queued… - 
<_whitenotifier-d13c> [Principia] Pending. Building… - http://casanova.westeurope.cloudapp.azure.com:8080/job/Principia/4344/
<WeylandsWings> if the class has merit, then we might get cheaper scopes
<SnoopJeDi> so, Fugaku is one impressive looking supercomputer
<WeylandsWings> SnoopJeDi: in the cosmetic flashes on the display racks?
<egg|anbo|egg> raptop: attempting to livestream a cow via potato internet https://youtu.be/iDPCMF9a0aw
<kmath> YouTube - Imaging
<SnoopJeDi> WeylandsWings, in the 3X performance on LINPACK sense
<SnoopJeDi> and also 1 TB/s bandwidth on HBM2
<WeylandsWings> egg|anbo|egg: what controller are you using
<WeylandsWings> heh cow
<SnoopJeDi> 🐄
<SnoopJeDi> !wpn -add:wpn 🐄
<galois> Added wpn '🐄'
<_whitenotifier-d13c> [Principia] pleroy reviewed pull request #2609 commit - https://git.io/JfxJV
<_whitenotifier-d13c> [Principia] pleroy reviewed pull request #2609 commit - https://git.io/JfxJw
<raptop> egg|anbo|egg: unable to determine what is going on
<egg|anbo|egg> raptop: the cow has left the field of view
* raptop pokes my connection with a packet
<raptop> !wpn
* galois gives raptop a marilith
<SnoopJeDi> it was a good cow
<SnoopJeDi> probably still is
<egg|anbo|egg> raptop: I think any shittiness is on my connection here
<egg|anbo|egg> raptop: now Vega is in field
<raptop> why is the sky blue?
<raptop> Hrm, CEST is UT+2, right?
<raptop> like, daytime blue?
<egg|anbo|egg> raptop: eggsposure time
<raptop> hrm
<egg|anbo|egg> it is notably blue IRL, but definitely twilight blue
<_whitenotifier-d13c> [Principia] Success. Build finished. - http://casanova.westeurope.cloudapp.azure.com:8080/job/Principia/4344/
* raptop looks at current health situation
<raptop> blue sky of death
<egg|anbo|egg> !choose focus good enough|keep poking at it
<raptop> stabbity choose: you should feed an image into DS9 and find the FWHM of the unsaturated stars
<egg|anbo|egg> raptop: I think this capture software has FWHM
<raptop> egg|anbo|egg: fair. (knowing what typical values are for that gives an objective answer to "is the focus good enough")
<egg|anbo|egg> raptop: yeah that second variable might be missing
<egg|anbo|egg> hm, that is far less sensitive than the spikeybois
<egg|anbo|egg> meh, close enough, time for some polar alignment
<egg|anbo|egg> oh, the polar scope is pointed at the roof isn't it
<raptop> !choose eat|don't eat
<galois> raptop: Your options: eat, don't eat. My choice: don't eat
<raptop> ;choose eat|don't eat
<kmath> raptop: eat
<SnoopJeDi> pls eat
<egg|anbo|egg> OK we have polar alignment I think
<egg|anbo|egg> we have M 57 in frame
<raptop> That appears to be an M 57
* raptop has acquired spagetti
<egg|anbo|egg> raptop: hm, my 60 s eggsposures seem to always get doubled
<egg|anbo|egg> there doesn’t seem to be that much wind though ?
<raptop> egg|anbo|egg: striction in the tracking motor?
<raptop> Fun fact: the campus 0.8 m has a dec wobble problem
<egg|anbo|egg> !choose 60 s|30 s|what is read noise
<galois> egg|anbo|egg: Your options: 60 s, 30 s, what is read noise. My choice: 30 s
<egg|anbo|egg> ;choose 60 s|30 s|what is read noise
<kmath> egg|anbo|egg: 60 s
<egg|anbo|egg> OK let’s go for 120 30 s eggsposures
<WeylandsWings> going to stack them all?
<egg|zzz|egg> well, the ones I don't discard at least
<WeylandsWings> going for stacked lucky images? https://en.wikipedia.org/wiki/Lucky_imaging
<galois> [WIKIPEDIA] Lucky imaging | "Lucky imaging (also called lucky exposures) is one form of speckle imaging used for astrophotography. Speckle imaging techniques use a high-speed camera with exposure times short enough (100 ms or less) so that the changes in the Earth's atmosphere during the exposure are minimal.With lucky imaging..."
<egg|zzz|egg> well this is not short enough for that
<egg|zzz|egg> I guess it is lucky wrt wind or tracking issues or whatever I am running into
<egg|zzz|egg> wind speed is low though so I'm not sure what is going on
<egg|zzz|egg> 7 km/h from the east, gusting at 14 km/h
<egg|zzz|egg> hmm, I should probably recentre soonish
<egg|zzz|egg> then again the batch of eggsposures will be done in 15 min or so
<egg|zzz|egg> raptop: should I get moar photons from M 57 or stare at something else when that batch is done
<raptop> egg|zzz|egg: Consider M 56?
<raptop> (globular cluster)
<egg|zzz|egg> *googles*
<egg|zzz|egg> apparently it is also a howitzer and a submachine gun
<egg|zzz|egg> raptop: note that due to the rotation of the Earth new bits of the sky become available, so Cyg easily and probably even further
<raptop> M30? M15?
<egg|zzz|egg> are there any Messier objects that are not guns
* raptop laughs in American
<egg|anbo|egg> raptop: hm, should I try the saturn nebula
<raptop> sure, why not
<egg|anbo|egg> argh might be too low on the sky
<egg|anbo|egg> raptop: saturn in frame while I try to figure things out
<raptop> egg|anbo|egg: is that Titan in the lower right?
<raptop> hrm
<raptop> maybe not
<egg|anbo|egg> unless it has a new moon, probably
<egg|anbo|egg> I can bump the eggsposure time to be sure
<raptop> It's like 7th magnitude
<egg|anbo|egg> raptop: now we have diffraction spikes on Saturn
<egg|anbo|egg> but I think it is Titan, yes
<raptop> yay
<egg|anbo|egg> and some other moons too
<egg|anbo|egg> mimas and rhea I think top-left
<egg|anbo|egg> or rhea and iapetus, rather
<egg|anbo|egg> I think we have dione if we mess with the exposure