Starship Asterisk*

[quote=JohnD post_id=320995 time=1646147988 user_id=100329]
And your evidence is the "Farmers Almanack"?
That would be funny if this was a Snark we're hunting!

And the link to the Wiki page leads to this statement:[i] "Since the introduction of the solar Julian calendar in the Roman Empire, and later the Gregorian calendar worldwide, people no longer perceive month names as "moon" names.[/i]"

John
[/quote]

Again, this is rubbish. My culture, which is certainly North American, most certainly adopts named moons.

And your evidence is the "Farmers Almanack"?
That would be funny if this was a Snark we're hunting!

And the link to the Wiki page leads to this statement:[i] "Since the introduction of the solar Julian calendar in the Roman Empire, and later the Gregorian calendar worldwide, people no longer perceive month names as "moon" names.[/i]"

John

To expand
https://en.wikipedia.org/wiki/Full_moon

[quote=JohnD post_id=320978 time=1646063477 user_id=100329]
"called the Snow Moon by some northern cultures" No they don't.
Even the link says "Some North American tribes named it the Hunger Moon" and lists some other fanciful names without any attribution.
[/quote]

Are you an expert in North American Native cultures?
The link goes to an article that says:

[attachment=0]Capture2.png[/attachment]

So yes, they are saying that many of them called it the "Snow Moon".
More reinforcing detail is at: [url]https://www.farmersalmanac.com/february-full-snow-moon-18217[/url]

Using the telescope to project the image onto a [url=https://youtu.be/ehZFGU3MxGo] spherical screen[/url] you'd need a [url=https://youtu.be/CWdxOBrcRs8] complex[/url] [url=https://www.youtube.com/watch?v=xqulqk3zRXg] complex[/url]. :yes:

Thanks Chris: your insight helps make it all easier to understand! :)

[quote=JohnD post_id=320978 time=1646063477 user_id=100329]
"called the Snow Moon by some northern cultures" No they don't.
Even the link says "Some North American tribes named it the Hunger Moon" and lists some other fanciful names without any attribution.
[/quote]

Well, it's commonly called that by many North Americans, so I'd say the comment is accurate.

"called the Snow Moon by some northern cultures" No they don't.
Even the link says "Some North American tribes named it the Hunger Moon" and lists some other fanciful names without any attribution.

[quote=Starman2233 post_id=320974 time=1646058682]
Can anyone tell if they're using prime focus or eyepiece projection? The distance seems great enough that I would think prime focus.
[/quote]

The telescope has a 9 m focal length, so the prime focus size of the Moon is about 80 mm. Has to be eyepiece projection... and you can see the eyepiece in the image.

[quote=Stargeezer post_id=320973 time=1646058521]
My best views of the full (or near full) moon are via binoviewers. The moon takes on an almost 3D appearance and there is no difference in brightness between my eyes, so no dazzling or eye strain.
[/quote]

Yeah, good point about both eyes. One of the things that makes lunar viewing somewhat uncomfortable with an eyepiece is the huge loss of dark adaptation on one side only. When you back away from the scope, the imbalance makes you feel blind in one eye, or like you're having a stroke or something! Binoviewers are good for telescopic viewing of everything. You're doubling the signal to your brain.

Can anyone tell if they're using prime focus or eyepiece projection? The distance seems great enough that I would think prime focus.

My best views of the full (or near full) moon are via binoviewers. The moon takes on an almost 3D appearance and there is no difference in brightness between my eyes, so no dazzling or eye strain.

[quote="orin stepanek" post_id=320971 time=1646052933 user_id=100812]
MoonHands_Graphy_960.jpg
What a wonderful Idea for looking at bright
objects! I'm not sure bi want to look at the sun
like that though! :mrgreen:
[/quote]

Well, the Moon isn't really that bright through a telescope. It just seems that way because you're normally pretty dark adapted when you first look, so it dazzles. They make neutral density filters, but if you talk with experienced observers, the best way to view the Moon is through an unfiltered eyepiece. You'll see more detail that way than by projection, or if you use a filter.

Before all the big solar telescopes converted to digital imaging, this kind of projection was the normal way the Sun was studied. I remember this kind of setup when I worked at Big Bear Solar Observatory, and I've seen it operate at Kitt Peak.

[attachment=0]MoonHands_Graphy_960.jpg[/attachment]
What a wonderful Idea for looking at bright
objects! I'm not sure bi want to look at the sun
like that though! :mrgreen:

[url=https://apod.nasa.gov/apod/ap220228.html] [img]https://apod.nasa.gov/apod/calendar/S_220228.jpg[/img] [size=150]Direct Projection: The Moon in My Hands[/size][/url]

[b] Explanation: [/b] You don't have to look through a telescope to know where it's pointing. Allowing the [url=https://spaceplace.nasa.gov/telescopes/en/]telescope[/url] to project its image onto a large surface can be useful because it dilutes the intense brightness of [url=https://en.wikipedia.org/wiki/List_of_brightest_natural_objects_in_the_sky]very bright sources[/url]. Such dilution is useful for looking at [url=https://spaceplace.nasa.gov/all-about-the-sun/en/]the Sun[/url], for example during a [url=https://apod.nasa.gov/apod/ap080802.html]solar eclipse[/url]. In the featured single-exposure image, though, it is a [url=https://www.nasa.gov/feature/episode-19-we-asked-a-nasa-scientist-why-can-you-see-the-moon-during-the-day]too-bright[/url] [url=https://apod.nasa.gov/apod/ap160201.html]full moon[/url] that is projected. This February full moon occurred two weeks ago and is [url=https://www.timeanddate.com/astronomy/moon/full-moon-names.html]called the Snow Moon[/url] by some northern cultures. The projecting instrument is the main 62-centimeter telescope at the [url=https://youtu.be/snB8f_4KoB0]Saint-Véran[/url] [url=https://en.wikipedia.org/wiki/Observatory_of_Saint-Veran]Observatory[/url] high in the French [url=https://en.wikipedia.org/wiki/Alps]Alps[/url]. Seeing a full moon directly is easier because it is not [url=https://cdn.shopify.com/s/files/1/0591/9784/9807/products/cat-with-sunglasses-advanced-animals-cats-paint-by-numbers-global-figuredart-free-shipping_972_640x.jpg]too bright[/url], although you won't see this level of detail. Your [url=https://svs.gsfc.nasa.gov/4955]next chance[/url] will occur on March 17.


[table][tr][td=left][url=https://asterisk.apod.com/discuss_apod.php?date=220227][b]<< Previous APOD[/b][/url][/td] [td=center][url=https://asterisk.apod.com/view_retro.php?date=0228][b]This Day in APOD[/b][/url][/td] [td=right][url=https://asterisk.apod.com/discuss_apod.php?date=220301][b]Next APOD >>[/b][/url][/td][/tr][/table]