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Framing the Stars: Why Every Stargazer Needs an FOV Calculator
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One of the most common disappointments in astronomy isn’t bad weather—it’s looking through the eyepiece and realizing the object doesn’t fit. You expected the Andromeda Galaxy to fill the frame, but instead, you only see its bright core. astro+fov+calculator+hot
Pro Tip: If your camera lacks active cooling (like a stock DSLR), CCDCalc will tell you your maximum exposure before “hot” noise ruins your sub-frame.
Current community consensus and reviews highlight the following as the most reliable and widely used tools: Framing the Stars: Why Every Stargazer Needs an
The Calculator: From Spreadsheet to Essential Dashboard
At its core, an FOV calculator (like those found on Astronomy.tools, Stellarium, or CCDCalc) answers a simple question: Exactly what patch of sky will my camera see through this telescope? By inputting focal length, sensor size, and pixel pitch, it produces a precise overlay of, say, the Whirlpool Galaxy (M51) against your camera’s frame. This prevents the heartbreaking scenario of imaging for three hours only to discover that the galaxy’s delicate spiral arms drifted just outside your sensor’s corner.
Here is that story.
The calculator had given him the theory, but the "hot" pixels had given him the truth.
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4 Comments
beardfortunately0209693c1c
Can’t afford the fabric? Get yourself to a thrift store and find a curtain or tablecloth and use that
sparrow refashion
Absolutely! Thrift stores are treasure troves! You can often find beautiful curtains, tablecloths, or even bedsheets that make amazing fabric for sewing. And don’t forget to check the fabric bins—some secondhand shops also carry unused fabric at a fraction of the price!
MJ
Hi! If I intend to use the basic bodice size S, which size of the sleeve should I use as guide??? Also, if you don’t mind the question, where can I find you pattern’s size charts?
Thank you so much! I’ve been subscribed to your newsletter for some time now and this will be my first project involving hacking patterns 💕
sparrow refashion
Hi! That’s wonderful to hear – Keeping my fingers crossed for your first pattern hacking project !
For the size chart, you can check it out here:
https://sparrowrefashion.com/2024/04/14/sloper-self-draft-and-hack-or-get-free-pdf-in-10-sizes/
And here’s the matching sleeve drafted to fit this basic block:
https://sparrowrefashion.com/2024/04/23/basic-sleeve-pattern-drafting-simplified-a-beginners-guide/
That way, if you’re using the bodice in size S, you can just follow the sleeve in the same size for a good fit.
Happy sewing and thank you so much for following along