ver 4.0j R19 Pro

In the database, object Pismis 1 has only an OCL for a secondary name. It is also an NGC object, NGC 2568.

Here is a NED reference that shows it has the same coordinates as Pismis 1.
https://ned.ipac.caltech.edu/byname?objn...4&corr_z=1

Please add NGC 2568 to Pismis 1.

Thanks,
Steve

CNEOS predicts that this large NEO will make a close approach on 2022-Nov-12 18:45 ± < 00:01 UT at a distance of 0.10411 AU. H=15.4 magnitude, V Relative=20.15 km/sec, 'Rarity'=2 & Condition Code=0. This is a large NEO (2.2-5.0 km) with a well determined orbit.

Using MPC's elements for 2022 November 9 00:00 UT, ST4v predicts that this object will reach a peak brightness of 14.0 magnitude between November 20-24, a broad light curve. At minimum earth distance it will be in Centaurus in daylight moving at 16"/min.

Here's an Interactive Atlas chart showing the predicted path from November 12 to December 23 in Brisbane, Australia: [attachment=2567]

This is a southern hemisphere object in early November, but will become visible from the northern hemisphere later in the pass. 

Good hunting,

Phil S.

Greg
In ST, object NGC 281 also has an alternate name of IC 1590.

Those are actually 2 different objects.
NGC 281 is an HII region, whereas IC 1590 is an open cluster inside of 281.

Is there a way to separate these out? I presume in the next database release.

Thanks,
Steve
ver 4.0j R19 Visual Pro

Hello,

I use Optolong L Extreme dual band filter which works great for the nebulas, but would like to start collecting full color stars using my lum filter for my image.   I then plan to add the full color stars into my images.

I often use the exposure calculator when planning a session for a nebula which works great.  Is there a way to have the calculator while pointing at the same object calculate just on the stars?     I see I can change expose for target object to stars but I am not sure if that takes into account the brighter starts in the FOV as I do not want to saturate them.

Or am I going about this all wrong?

Thank you for any advice

Shawn

There will be a total lunar eclipse visible on the morning of November 8, 2022 visible from most of North America. Mid-eclipse occurs at 6:01 AM EST and is visible 13° above the horizon in the west from Columbus , Ohio. The eclipse will be followed by a possible occultation of Uranus for those farther west.

CLear skies,

Phil S.

CNEOS predicts that the NEO 2010 XC15 will make a close approach on 2022-Dec-27 18:15 ± < 00:01 UT at a distance of 0.00516 AU. H=21.4 magnitude, V relative =10.10 km/sec, 'Rarity'=3, Condition Code=1. This is a decent sized rock, 140m-310m.

The close approach is quite a ways off, but since it's a 'Rarity'=3 event I thought that it deserved an early warning. I haven't done any calculations in ST4v yet.

Clear skies,

Phil S.

It looks like Mars took one for the team in December 2021. There was a Mars quake & they just found the crater from the impact.

NASA confirms massive meteoroid behind huge Mars crater, earthquake - UPI.com

Better now than when we colonize it. 

Phil S.

CNEOS presicts that the large NEO (217628) Lugh 1990 HA will make a close approach on 2022-Nov-20 09:13 ± < 00:01 UT at a distance of 0.13484 AU. H=16.6 magnitude, V Relative=21.16 km/sec, 'Rarity'=1 & Condition Code=0. This NEO has a diameter of 1.4 km.

Using recent orbital elements from the MPC, ST4v predicts that this object will reach a peak brightness of 14.7 magnitude on November 15 at 0.15 AU distance when it will be moving through Monoceros at 10.8"/min. At close approach it will be moving through Hydra at 12.8"/min & 15.8 magnitude. It looks like it will be within ~2° of Bellatrix in Orion on the morning on November 2.

Here's an Interactive Atlas chart showing the predicted path of this NEO from October 19 to November 27 as seen from Columbus, Ohio: [attachment=2552]

This large, bright NEO should be visible from the northern & southern hemispheres, plus there's plenty of warning. 

Good hunting,

Phil S.

Newbie Alert!  I have a question about the "Ideal Eyepiece" column on the nightly planner screen.  I have profiled my telescope in the software with several lenses (30mm. 20mm, 12.5mm, 10mm and 8mm).  When I load a filter class (i.e. Planetary Nebula) the resulting list contains 2 nebulae that are best viewed with my 10mm eyepiece but also lists 16 nebulae ideally viewed with my 20mm plus a 2x barlow. 

Can someone explain why the software seems to prefer a barlow'ed 20 to a straight 10mm.  Wouldn't these provide equal magnification?

If it matters, both eyepieces are from the same series and have the same field of view.

Thanks!

CNEOS predicts that this large NEO will make a close approach on 2022-Nov-21 17:11 ± < 00:01 UT at a distance of 0.14137 AU. H=15.8 magnitude, V relative=21.36 km/sec, 'Rarity'=2 & Condition Code=0. This is a large object, 3.484±0.789 km so it's already 15.5 magnitude according to ST4v despite still being 0.4 AU distant. I thought that it might be interesting to keep an eye on it as it approaches.

Using MPC's orbital elements for the epoch October 23 00:00 UT, ST4v predicts that this NEO will reach a maximum brightness of 14.1 magnitude from November 13-18 traveling from Lynx into Ursa Major at ~10"/min. The light curve is quite flat since the MP is large & 0.14-0.15 AU distant at that time.

Here's an Interactive Atlas chart showing the predicted path of this NEO from 2022 October 19-November24 for Columbus, Ohio: [attachment=2551]

Good hunting,

Phil S.