def separation(obj1, obj2):
"""Return the apparent angular separation between two objects."""
try:
first = ongc.Dso(obj1)
second = ongc.Dso(obj2)
click.echo('Apparent angular separation between ' +
click.style(first.name, fg='cyan') + ' and ' +
click.style(second.name, fg='cyan') + ' is:')
click.secho(ongc.getSeparation(obj1, obj2, style="text"), bold=True)
except Exception as e:
click.echo(f'{click.style("ERROR:", fg="red", bold=True)} {e}')
def test_nameRecognition(self):
"""Test the regex used to convert the name of the object inputted by the user to the
correct form.
"""
self.assertEqual(ongc.Dso("ngc1")._name, 'NGC0001')
self.assertEqual(ongc.Dso("ic 1")._name, 'IC0001')
self.assertEqual(ongc.Dso("ic80 ned1")._name, 'IC0080 NED01')
self.assertEqual(ongc.Dso("ngc61a")._name, 'NGC0061A')
self.assertRaisesRegexp(ValueError, "Wrong object name", ongc.Dso,
"M15")
self.assertRaisesRegexp(ValueError, "not found in the database",
ongc.Dso, "NGC0001A")
def neighbors(name, radius, catalog):
"""List objects in proximity of another DSO."""
try:
start_obj = ongc.Dso(name)
object_list = ongc.getNeighbors(start_obj, radius, catalog)
if len(object_list) == 0:
click.secho('\nNo objects found within search radius!', bold=True)
return
if len(object_list) > 20:
if click.confirm(
click.style('WARNING: ', fg='yellow', bold=True) +
'the result list is long. Do you want to see it via a pager?'
):
click.echo_via_pager('\n'.join(f'{dso[1]:.2f}° --> {dso[0]}'
for dso in object_list))
return
click.secho(f'\n{start_obj.name} neighbors from nearest to farthest:',
bold=True)
for dso in object_list:
click.echo(f'{dso[1]:.2f}° --> {dso[0]}')
if catalog != 'all':
search_filter = f' and showing {catalog} objects only'
else:
search_filter = ''
click.secho(
f'(using a search radius of {radius} arcmin{search_filter})\n',
fg='cyan')
except Exception as e:
click.echo(f'{click.style("ERROR:", fg="red", bold=True)} {e}')
def __init__(self, object_name, session):
super().__init__(object_name, session)
if type(object_name) == ongc.Dso:
self.dso = object_name # If class initialized directly with a Dso, use it, else create a new one.
else:
try:
self.dso = ongc.Dso(object_name)
except Exception as e:
logging.warning(e)
#print("DSO:", self.dso, type(self.dso))
#self.kind = 'Deep Space object' # TODO: distinguish between stars, galaxies...
#self.constellation = ''
ra_arr, dec_arr = self.dso.getCoords()
self.ra, self.dec = tuple(ra_arr), tuple(dec_arr)
self.alt_ids = self.dso.getIdentifiers()
self.constellation = self.dso.getConstellation()
self.kind = self.dso.getType()
self.star = Star(ra_hours=self.ra, dec_degrees=self.dec)
self.star_astro_now = self.astrometric = self.session.here.at(
self.session.start).observe(self.star)
self.apparent = self.astrometric.apparent()
self.alt, self.az, self.distance = self.apparent.altaz('standard')
ra_arr, dec_arr = self.dso.getCoords()
self.ra, self.dec = tuple(ra_arr), tuple(dec_arr)
self.alt_ids = self.dso.getIdentifiers()
self.messier = self.alt_ids[0]
self.constellation = self.dso.getConstellation()
self.kind = self.dso.getType()
def view(name, details):
"""Print out object information."""
try:
if details:
click.echo(ongc.printDetails(ongc.Dso(name)))
else:
click.secho(f'{ongc.Dso(name)}', bold=True)
except Exception as e:
click.echo(f'{click.style("ERROR:", fg="red", bold=True)} {e}')
def test_duplicateResolving(self):
"""Test that a duplicated object is returned as himself when asked to do so."""
self.assertEqual(ongc.Dso("ngc20")._name, 'NGC0006')
self.assertEqual(ongc.Dso("ngc20", returnDup=True)._name, 'NGC0020')