Orthographic Map

from datetime import datetime
from zoneinfo import ZoneInfo

from starplot import MapPlot, Orthographic, Observer, _
from starplot.styles import PlotStyle, extensions


style = PlotStyle().extend(
    extensions.BLUE_MEDIUM,
    extensions.MAP,
    extensions.FIGURE_TRANSPARENT,
)

tz = ZoneInfo("America/Los_Angeles")
dt = datetime(2024, 10, 19, 21, 00, tzinfo=tz)

observer = Observer(
    dt=dt,
    lat=32.97,
    lon=-117.038611,
)
p = MapPlot(
    projection=Orthographic(
        center_ra=observer.lst,
        center_dec=observer.lat,
    ),
    observer=observer,
    style=style,
    scale=1.1,
)
p.gridlines(labels=False)
p.constellations()
p.constellation_borders()

p.stars(where=[_.magnitude < 7], where_labels=False)
p.open_clusters(
    where=[_.magnitude < 12],
    where_labels=False,
    where_true_size=False,
)
p.galaxies(
    where=[_.magnitude < 12],
    where_labels=False,
    where_true_size=False,
)
p.nebula(
    where=[_.magnitude < 12],
    where_labels=False,
    where_true_size=False,
)

p.ecliptic()
p.celestial_equator()
p.milky_way()

p.export("map_orthographic.png")