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Hyperleda
#1
I note that many other planning software and charting programs are now using the 5 million strong HyperLeda galaxy catalogue. Although this is probably far more than myself as a visual observer would ever need I would have thought for the EAA version this might be something of interest. Do you have any plans to update these catalogues, perhaps for 4.2?
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#2
Yes, I do have plans for that in version 4.2. But there is a caveat, and that is that the Hyperleda database, which SkyTools already uses, has many galaxies with very poor data. My previous experience is that if you only use the galaxies that you can say with confidence are real, you get far less than the total in the database. Maybe that has changed, we'll see, but I think the current database already shows the majority of the galaxies you can expect to reasonably image, except for certain areas or specific galaxies, where any number of things could lead to them not be present in the Hyperleda database or having been filtered out by an algorithm excluding the ones with poor data.
Clear skies,
Greg
Head Dude at Skyhound
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#3
In a few years we'll get better position, distance and spectrum data about galaxies from Euclid: https://www.universetoday.com/165755/euc...-universe/. Not the full sky, just 1/3 of the sky outside of the Milky Way, but it's still something. 

"An initial deep sky data set will be released in Spring 2025, and data from the first year of the general survey will be released in Summer 2026."
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#4
(2024-02-17, 08:35 PM)razvan Wrote: In a few years we'll get better position, distance and spectrum data about galaxies from Euclid: https://www.universetoday.com/165755/euc...-universe/. Not the full sky, just 1/3 of the sky outside of the Milky Way, but it's still something. 

"An initial deep sky data set will be released in Spring 2025, and data from the first year of the general survey will be released in Summer 2026."

Cool
Clear skies,
Greg
Head Dude at Skyhound
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