Hi all,

I am sort of a newbie and I am trying to make obstructed horizon closer to what I can really see in my restricted observing area.

This is my file:

0 90
30 90
45 90
60 90
100 0
170 0
210 90
225 90
240 90
300 90
330 90
359 90 

Try different ways but gets out of shape.

and below is a picture of what it looks like.
Above the dotted lines is what I can not see.
Straight or curved, anyone can help?

Thanks in advance!

Attached Files

Thumbnail(s)
   

Hi Greg,

Is there a way to show the Algol minima within a given time frame ? There are online resources for this, but it'd be nice to have the info inside ST, for instance in the Event Finder or Ephemerids (if there isn't a way already, which I tried finding prior to posting).

Thank you.

The above occurred today as was streamed live from Japan (I think).

When I tried to show it in the Event Finder (2 bodies) I come up blank. Everything is set to the defaults.

What am I missing?

Thanks
Bob

   

This little rock (12') just screamed by in the dawn hours of November 1, moving 40'/min just b4 twilight. Well below my horizon and for a very short time, magnitude 13!

Discovered just a day after by ATLAS-MLO, Mauna Loa and only 54 observations over 2 days. 

Interactive flyby: https://minorplanetcenter.net/neo/view?d...ig=K21V00H

December 10, 11, & 12. Not a particularly close pass nor fast (20"/min). But may be magnitude 12 for many hours on the mornings of December 10 & 11, Slightly fainter on 12th. Closest after sunrise morning of Dec. 11. Stays high in the north on 10th, 11th & 12th in predawn hours. No Moon. This rock is ~1,000' diameter!

Discovered 1981 Sept. 30 – Siding Spring Observatory  Orbit Uncertainty = 0. Over 700 observations since discovery. Last observation on 2021 11 02.86025 by Kuban State University Astrophysical Observatory.

The International Asteroid Warning Network will conduct a campaign to check the accuracy of the observation times reported by asteroid observers. They will be using the close pass of 2019 XS next week. Close pass for me is at 21:47:05CST November 8 far below my SE horizon. Best viewing time for me is 24 hours later when the rock is high, brighter due to % illumination but farther away (2.8LD vs 1.5LD).  Details can be found at:

https://iawn.net/obscamp/2019XS/

I was wondering if there is a way to plot in an IA the positions of a comet or asteroid of the same name from different element sources (MPC, Bowell's ASTORB & JPL). Well, maybe not JPL as ST does not allow MP imports from there. Mostly to see how the positions differ in the real sky. The majority of software only makes available singles sources for an asteroid of comet element set. I noticed that SkyTools 4v has several different sources for the elements.

When I try to sort an observing list I get this:

"Column sorting disabled for presorted Observing Plans"  It effects every observing list I have.

I've never purposely created an "observing plan". I don't know how I got here and don't know how to get back.

How do I restore normal sort functions?

I've been interested in observing this crescent moons since the late 80s. I was looking at adding SkyTools to my observing toolkit for those planning sessions. How do I get the Apparent Data in the Object Info to feed the refracted/apparent altitude instead of the true altitude? And the Interactive Atlas view to show refracted location?

These thin crescent moons are generally located near the horizon, anywhere from 14° (easy) to only 1° (not so easy). Also, the crescent might have a very small elongation from the Sun and under 1% illumination.

Any hints on setting these up within the Interactive Atlas would be appreciated. I generally use my 10x70 binoculars to hunt these while the Sun is down ~4° - works good from a lot of experience. I'm working to incorporated ST4v into the planning of future hunts.

For the southern hemisphere & possibly Hawaii the minor planet 2021 UW1 will make a close approach on the evening of Oct 30 ~2300. The Interactive Atlas chart showing the path of the MP is attached below as is the Observing List that contains info about the pass.

Hopefully someone will be able to look for it,

Phil S.