# astronony

## February 12, 2021

Astronify testing

Back in 2020 I attended a Space Telescope Science Institute lecture on Astronify and wrote a review on this.

I an going to attempt to test the software out, so the first task is to install python-pip

May as well install this for both python and python3

apt install python-pip python-pip-whl python3-pip python3-pipdeptree

pip install astronify
Collecting astronify
Could not find a version that satisfies the requirement astronify (from versions: )
No matching distribution found for astronify

Astronify is on pypy so it makes sense to perhaps do a apt search on this:-

I found the following package

pypi2deb

apt install pypi2deb has quite a few extra requirements so may take a while

man page for pip also points to

pip search

so tried to do a search for astronify but the package seems to crash,

pip search astronify
Exception:
Traceback (most recent call last):
File "/usr/lib/python2.7/dist-packages/pip/_internal/cli/base_command.py", line 143, in main
status = self.run(options, args)
File "/usr/lib/python2.7/dist-packages/pip/_internal/commands/search.py", line 48, in run
pypi_hits = self.search(query, options)
File "/usr/lib/python2.7/dist-packages/pip/_internal/commands/search.py", line 65, in search
hits = pypi.search({'name': query, 'summary': query}, 'or')
File "/usr/lib/python2.7/xmlrpclib.py", line 1243, in __call__
return self.__send(self.__name, args)
File "/usr/lib/python2.7/xmlrpclib.py", line 1602, in __request
verbose=self.__verbose
return self.parse_response(response.raw)
File "/usr/lib/python2.7/xmlrpclib.py", line 1493, in parse_response
return u.close()
File "/usr/lib/python2.7/xmlrpclib.py", line 800, in close
raise Fault(**self._stack[0])
Fault: <Fault -32500: "RuntimeError: PyPI's XMLRPC API has been temporarily disabled due to unmanageable load and will be deprecated in the near future. See https://status.python.org/ for more information.">

So at first glance this may not seem useful, the error is more useful to anyone who understands it. Next step would be to ask on some forums for help.

REFERENCES

TAGS

## February 9, 2021

Back in 2020 I attended a Space Telescope Science Institute lecture on Astronify and wrote a review on this.

I found this as a result of another post on Mastodon earlier today from Khurram Wadee. This is the sonification of the Pillars of creation, within the Eagle Nebula. This nicely illustrates how the research of the Astronify team works.

I have included some related links below, including a link to the Qoto Mastodon instance, and the related Discourse forum where you can discuss a range of STEM topics.

Lots of research going on, which is really exciting. If you want to learn more, the Open University offer courses within the Space Sciences.

REFERENCES

TAGS

## October 20, 2020

National Chemistry Week 2020

18th to 24th October is National Chemistry week, so there are a few activities listed on the American Chemistry Society website out reach pages.

In recent chemistry news ScienceMagazine has an article on a Globular cluster in the Andromeda galaxy that appear to be deficient in elements heavier than Hydrogen and Helium.

This is interesting, there isn't that much information due to the need to sign in, but I would suspect the research papers may be more widely available in due course.

Resources

1. American Chemistry Society

## January 6, 2020

#Cassiopeia

Cassiopeia is a constellation in the Northern Hemisphere. In this article I hope to cover some of the interesting objects that can be found in this region of space.

The constellation is recognisable from the fact it has a W shape. Cassiopeia can be found near to Perseus and Andromeda.

For the purpose of this article I will be using the K-stars package.

Principle Stars These appear in Kstars. I have set the software to display objects fainter than Magnitude (m) 5.0.

• Caph (2.3m)
• Schedar (2.3m)
• Navi (2.2m)
• Ruchbah (2.7m)
• Segib (3.3m)

Other Stars

$\eta$ Cassiopeiae (3.5m) $\zeta$ Cassiopeiae (3.7m) $\kappa$ Cassiopeiae (4.2m) $\theta$ Cassiopeiae (4.3m) $\nu$ Cassiopeiae (1) (3.5m) $\nu$ Cassiopeiae (2) (4.7m) $\iota$ Cassiopeiae (4.6m) $\omega$ Cassiopeiae (4.9m) $\psi$ Cassiopeiae (4.8m) $\pi$ Cassiopeiae (5.0m) $\xi$ Cassiopeiae (4.8m) $\lambda$ Cassiopeiae (4.7m) $\rho$ Cassiopeiae (4.6m) $\sigma$ Cassiopeiae (5.0m) $\varphi$ Cassiopeiae (5.1m) $\chi$ Cassiopeiae (4.8m) $\mu$ Cassiopeiae (5.2m)

Data from Kstars application.

The constellation also has many objects such as open clusters.

The Owl Cluster (NGC 457) is close to the star $\varphi$ Cassiopeiae.

There are no galaxies within the constellation but star $\zeta$ Cassiopeiae (3.7m) appears to be the closest to the Andromeda Galaxy (M31).

You can see the milkyway behind the constellation. This could explain the number of open clusters in the region. However this is more speculation as I am not an expert on this.

References:

You can find me on Friendica at zleap@social.isurf.ca

Licenced under Attribution 4.0 International (CC BY 4.0)

## In the night sky : Orion

I am currently working through another short OpenLearn course. This time I am exploring the constellation of Orion.

Having previously studied other Space science courses, some of the concepts are easier to understand, such as the lifecycle of stars.

Despite understanding the maths behind huge numbers. Distances such as 1 light year are massive : (ly) $$9.5 \times 10^{12} km.$$

The subsequent distance to the Orion Nebula which is 1600 light years. Therefore $$1600 \times 9.5 \times 10^{12} km$$.

I think, that this should be expressed as $$1.6 \times 9.5 \times 10^{15} km$$

Understandably it is difficult to imagine the sort of distances involved.

If you intend to study this course. I would recommend other courses first. Courses such as 'The Sun' may be a good starting point.

I am about ½ way through the second week of the course. Currently looking at the life cycle of a star beyond the main sequence phase, so this includes Red Giants, Brown / White dwarf, Supernova and black holes, or at least how and under what conditions these are formed.

You do need an astronomy package, to help with the course. This comes in more useful, if you don't have clear skies to observe Orion. I have discussed how to use the kstars package to find Orion in post yesterday (30/12/2019).

What I can take from this course, is some inspiration to write some posts about other constellations of the night sky.

References :

It may be beneficial to have a look at these courses before embarking on this longer course:

The Galaxies stars and planets course has a section on the scale of the universe, which is helpful to help you understand very large numbers.

You can find me on Friendica at zleap@social.isurf.ca

Licenced under Attribution 4.0 International (CC BY 4.0)