diff --git a/.scripts/tests-e2e.sh b/.scripts/tests-e2e.sh
index 6b823ff..e13765a 100755
--- a/.scripts/tests-e2e.sh
+++ b/.scripts/tests-e2e.sh
@@ -91,28 +91,34 @@ assertSuccess "$KOSMORRO_COMMAND --date='+3y 5m3d'"
 assertSuccess "$KOSMORRO_COMMAND --date='-1y3d'"
 assertFailure "$KOSMORRO_COMMAND --date='+3d4m"
 assertFailure "$KOSMORRO_COMMAND -date='3y'"
-assertSuccess "$KOSMORRO_COMMAND --latitude=50.5876 --longitude=3.0624"
-assertSuccess "$KOSMORRO_COMMAND --latitude=50.5876 --longitude=3.0624 -d 2020-01-27"
-assertSuccess "$KOSMORRO_COMMAND --latitude=50.5876 --longitude=3.0624 -d 2020-01-27 --timezone=1"
-assertSuccess "$KOSMORRO_COMMAND --latitude=50.5876 --longitude=3.0624 -d 2020-01-27 --timezone=-1"
-assertSuccess "$KOSMORRO_COMMAND --latitude=50.5876 --longitude=3.0624 -d 2020-01-27 --format=json"
-assertFailure "$KOSMORRO_COMMAND --latitude=50.5876 --longitude=3.0624 -d 2020-01-27 --format=pdf"
+assertFailure "$KOSMORRO_COMMAND --latitude=50.5876 --longitude=3.0624"
+assertSuccess "$KOSMORRO_COMMAND --position=\"50.5876;3.0624\""
+assertSuccess "$KOSMORRO_COMMAND --position=\"50.5876,3.0624\""
+assertSuccess "$KOSMORRO_COMMAND --position=\"50.5876;-3.0624\""
+assertSuccess "$KOSMORRO_COMMAND --position=\"-50.5876;-3.0624\""
+assertSuccess "$KOSMORRO_COMMAND --position=\"50.5876,-3.0624\""
+assertSuccess "$KOSMORRO_COMMAND --position=\"-50.5876,-3.0624\""
+assertSuccess "$KOSMORRO_COMMAND --position=\"50.5876;3.0624\" -d 2020-01-27"
+assertSuccess "$KOSMORRO_COMMAND --position=\"50.5876;3.0624\" -d 2020-01-27 --timezone=1"
+assertSuccess "$KOSMORRO_COMMAND --position=\"50.5876;3.0624\" -d 2020-01-27 --timezone=-1"
+assertSuccess "$KOSMORRO_COMMAND --position=\"50.5876;3.0624\" -d 2020-01-27 --format=json"
+assertFailure "$KOSMORRO_COMMAND --position=\"50.5876;3.0624\" -d 2020-01-27 --format=pdf"
 
 # Environment variables
 assertSuccess "LATITUDE=50.5876 LONGITUDE=3.0624 TIMEZONE=1 kosmorro -d 2020-01-27"
 assertSuccess "LATITUDE=50.5876 LONGITUDE=3.0624 TIMEZONE=-1 kosmorro -d 2020-01-27"
 
 # Missing dependencies, should fail
-assertFailure "$KOSMORRO_COMMAND --latitude=50.5876 --longitude=3.0624 -d 2020-01-27 --format=pdf -o $HOME/kosmorro/export/document.pdf"
+assertFailure "$KOSMORRO_COMMAND --position=\"50.5876;3.0624\" -d 2020-01-27 --format=pdf -o $HOME/kosmorro/export/document.pdf"
 assertFailure "ls $HOME/kosmorro/export/document.pdf"
 
 assertSuccess "sudo apt-get install -y texlive texlive-latex-extra" "CI"
 
 # Dependencies installed, should not fail
-assertSuccess "$KOSMORRO_COMMAND --latitude=50.5876 --longitude=3.0624 -d 2020-01-27 --format=pdf -o $HOME/kosmorro/export/document.pdf"
+assertSuccess "$KOSMORRO_COMMAND --position=\"50.5876;3.0624\" -d 2020-01-27 --format=pdf -o $HOME/kosmorro/export/document.pdf"
 assertSuccess "ls $HOME/kosmorro/export/document.pdf"
 
-assertSuccess "$KOSMORRO_COMMAND --latitude=50.5876 --longitude=3.0624 -d 2020-01-27 --format=pdf -o $HOME/kosmorro/export/document-no-graph.pdf --no-graph"
+assertSuccess "$KOSMORRO_COMMAND --position=\"50.5876;3.0624\" -d 2020-01-27 --format=pdf -o $HOME/kosmorro/export/document-no-graph.pdf --no-graph"
 assertSuccess "ls $HOME/kosmorro/export/document-no-graph.pdf"
 
 # man page
diff --git a/_kosmorro/geolocation.py b/_kosmorro/geolocation.py
new file mode 100644
index 0000000..3bee5aa
--- /dev/null
+++ b/_kosmorro/geolocation.py
@@ -0,0 +1,22 @@
+#!/usr/bin/env python3
+
+import re
+
+from kosmorrolib import Position
+
+from .i18n.utils import _
+
+
+def _parse_latitude_longitude(from_str: str) -> Position:
+    if not re.search(r"^([\d.-]+)[,;]([\d.-]+)$", from_str):
+        raise ValueError(_("The given position (%s) is not valid." % from_str))
+
+    latitude_longitude = from_str.split(';')
+    if len(latitude_longitude) == 1:
+        latitude_longitude = from_str.split(',')
+
+    return Position(float(latitude_longitude[0]), float(latitude_longitude[1]))
+
+
+def get_position(from_str: str) -> Position:
+    return _parse_latitude_longitude(from_str)
diff --git a/_kosmorro/main.py b/_kosmorro/main.py
index bd852c7..234acc8 100644
--- a/_kosmorro/main.py
+++ b/_kosmorro/main.py
@@ -13,6 +13,7 @@ from termcolor import colored
 
 from . import dumper, environment, debug
 from .date import parse_date
+from .geolocation import get_position
 from .__version__ import __version__ as kosmorro_version
 from .exceptions import UnavailableFeatureError, OutOfRangeDateError as DateRangeError
 from _kosmorro.i18n.utils import _, SHORT_DATE_FORMAT
@@ -34,12 +35,7 @@ def main():
         print(colored(error.args[0], color="red", attrs=["bold"]))
         return -1
 
-    position = None
-
-    if args.latitude is not None or args.longitude is not None:
-        position = Position(args.latitude, args.longitude)
-    elif env_vars.latitude is not None and env_vars.longitude is not None:
-        position = Position(float(env_vars.latitude), float(env_vars.longitude))
+    position = get_position(args.position) if args.position is not None else None
 
     if output_format == "pdf":
         print(
@@ -247,23 +243,13 @@ def get_args(output_formats: [str]):
         help=_("The format to output the information to"),
     )
     parser.add_argument(
-        "--latitude",
-        "-lat",
-        type=float,
-        default=None,
-        help=_(
-            "The observer's latitude on Earth. Can also be set in the KOSMORRO_LATITUDE environment "
-            "variable."
-        ),
-    )
-    parser.add_argument(
-        "--longitude",
-        "-lon",
-        type=float,
+        "--position",
+        "-p",
+        type=str,
         default=None,
         help=_(
-            "The observer's longitude on Earth. Can also be set in the KOSMORRO_LONGITUDE "
-            "environment variable."
+            "The observer's position on Earth, in the \"{latitude},{longitude}\" format."
+            "Can also be set in the KOSMORRO_POSITION environment variable."
         ),
     )
     parser.add_argument(