| stevecoe |
| ("Astronomical Tourist") |
| 07/23/08 07:15 PM |
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Please provide errata to the SAC databases
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Howdy all;
I am just getting done with an update to the Saguaro Astronomy Club (SAC) databases. If you have any input about the deep sky, double star, red star or asterism databases then please let me know right away.
www.saguaroastro.org
I have spent much time over the past several months getting the data as clean as I can and I would like any help you can provide if you have found an error or an addition of a famous object that we missed let me know.
Thanks for your time and effort;
Steve Coe
| sgottlieb |
| (sage) |
| 07/23/08 09:20 PM |
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Re: Please provide errata to the SAC databases
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One thing I noticed, Steve, is that the Uranometria Chart Number field still references the original charts and not the current Uranometria. So, it's not useful to anyone using the current version.
There is probably an existing program (or someone could write a short routine) to compute the new chart numbers from the given RA and Dec in the SAC database. What do you think?
| Starman1 |
| (Vendor - Scope City) |
| 07/24/08 01:55 AM |
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Re: Please provide errata to the SAC databases
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I second Steve G's remark.
| stevecoe |
| ("Astronomical Tourist") |
| 07/24/08 06:01 AM |
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Re: Please provide errata to the SAC databases
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I don't know if I can have that available for this release, but I will certainly keep it on the burner for a future project. I just don't know anyone with the new Uranometria. So many of the SAC members found it useful and bought the original and don't see enough difference to purchase the new one. But, if it is out that then we ought to put in the new pages.
Any real errata? That is what I am hoping for this time around, like real errors, dude;-)
Clear skies;
Steve Coe
| Olivier Biot |
| (Amused) |
| 07/24/08 06:02 PM |
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Re: Please provide errata to the SAC databases
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I don't know the timeline for publishing the new release, but I can probably provide chart numbers for Herald-Bobroff, Millennium Star Atlas and maybe even Pocket Sky Atlas.
| AlanK |
| (professor emeritus) |
| 03/11/09 07:10 AM |
| Attachment |
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Re: Please provide errata to the SAC databases
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Steve & Steve
I've already added a new column with all the Uranometria 2nd edition chart numbers to SAC v8.0 a while back after downloading it. Please send me a PM if you are interested in getting them.
14/03/09: Sample now attached with the red column containing the map numbers. Since each Uranometria chart number is two pages, the 'L' or 'R' at the end designates left or right one.
Regards
Alan
| Jim Curry |
| (sage) |
| 04/15/09 04:53 PM |
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Re: Please provide errata to the SAC databases
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Steve Coe:
NGC 5373 is listed as 15.3. I found another listing on the web of it listed as 15 photo, 14 visual. Are you sure 15.3 is correct?
Here's another 4407, SAG has it at 12.7, SEDS has this:m_b: 12.7 (mag) , m_v: 11.9 (mag) , SB: 13.0 (mag per square arcmin)
I observed 4407 the other night and I was not seeing 12.7 deep. I was barely getting to 12.1 or .2 w/averted only. 4407 was standing right out there.
Jim
Jim
| AlanK |
| (professor emeritus) |
| 04/19/09 07:38 AM |
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Re: Please provide errata to the SAC databases
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SAC has NGC 3428 and 3429 as the same object at 10h 51.5 +09 17 which is in conflict with some other well known sources. U2 2nd edition has them shown separately on map 92L. The DSS SIMBAD & NED, Guide 8.0 software and the NGC 2000.0 are the same having:
3428 - 10h 51 29.62 +09 16 45.0
3429 - 10h 50 57.40 +09 15 55.0
A few nights ago, I obs 3428 as a fairly bright object approx 5' nf of an 8th mag star and in the position of 3429, a very faint small round object.
| Olivier Biot |
| (Amused) |
| 05/26/09 05:21 PM |
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Re: Please provide errata to the SAC databases
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Managed to upload the first version of the Herald-Bobroff index to the SAC database version 8 on my website as it's a bit big an upload to CN (1.5MB Zipped Excel sheet).
The index has been generated by means of an Excel sheet. I did not check whether the labels of each object are visible on the charts: for instance NGC 51 is computed as being visible on the B and C charts but there's no "NGC 51" label on either chart series.
This Excel sheet only adds a couple columns after the original SAC database columns.
You can find it here
Comments are welcome of course!
Cheers,
Olivier
| Olivier Biot |
| (Amused) |
| 05/29/09 04:29 PM |
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Re: Please provide errata to the SAC databases
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Found one typo only so far: the RA for dark nebula B9 (line 1043) in Cam is lacking a period: it should read "04 18.0" and not "04 18 0"
| AlanK |
| (professor emeritus) |
| 06/02/09 06:05 AM |
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Re: Please provide errata to the SAC databases
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NGC 6008 is listed as NGC 6008A in notes column S. U2K also agrees showing 6008A&B at same position. However, a number of other sources (including Steves ngc notes) refer to them as NGC 6008 & 6008B. Only very minor I know but which is correct?